Most ungulates are surprisingly inept at using their horns against predators, part 1

Most species of ungulates have pointed 'weapons' of some kind on their heads, be these horns, antlers or long canine teeth.

These are used in masculine rivalry. In species in which they occur also in females, they are used for other social threats in certain situations.

One might expect, then, that the horns, antlers and teeth of ungulates could be applied to stabbing predators.

Surprisingly, most species of ungulates turn out to be inept in fighting off predators. The pointed structures on their heads function far more as adornments than as weapons; and their ritual rather than violent deployment is analogous with the gentlemanly sport of fencing.

The problem seems to be that the 'hardware' lacks suitable 'software', i.e. the brains of ungulates do not seem to be programmed for aiming and striking at predators, regardless of how precise their use is in masculine sparring.

Ungulates generally rely on rapid fleeing and reproduction, not self-defence, in order to survive predation. When cornered, they lack the behavioural versatility to use their 'weapons' in more than a tokenistic way. Once wounded, they go into shock and seem to lose will and coordination.

The few exceptions appear to include

All of the above are ecologically and/or socially extreme in ways suggesting that fleeing and reproduction alone would not allow them to survive predation. And all have horn-designs unusually suited to stabbing and hooking.

Other ungulates with defensive reputations in the semi-popular literature, such as oryxes (https://www.inaturalist.org/observations?taxon_id=42307), are more inept than the fearsome shapes of their horns might suggest.

The African savanna buffalo (Syncerus caffer, https://www.inaturalist.org/taxa/42405-Syncerus-caffer) is certainly dangerous to humans when wounded. However, its horns are too blunt to stab an antagonist.

Various video-clips show how timorously the African buffalo behaves versus the lion (Panthera leo), even when there are opportunities to strike blows (see https://www.sabisabi.com/blog/14593/lions-vs-buffalo/ and https://www.youtube.com/watch?v=zzI8ya3ARWM and https://www.youtube.com/watch?v=SObYT06hnm4 and https://www.youtube.com/watch?v=MY6conyVLlc and https://www.youtube.com/watch?v=aCwwecrasWI). The lion is intimated more by the bulk and gregariousness of buffaloes than by the horn-tips.

The following video-clip (https://www.youtube.com/watch?v=Bu2JspPdMy0 ), taken near Kruger National Park, shows:

  • how obtuse the African buffalo can be, with the mother wandering out from the group with her infant, 'just asking for trouble',
  • that the mother does in fact put up a spirited defence against one adult male of the lion, but loses her infant anyway because several individuals of the lion are hunting together, and
  • how poorly co-ordinated the collective defence is: there are several mature males near the infant, but they do not cooperate to defend it.

And even when the predators, in the act of eating, are vulnerable to retribution, the mature male African savanna buffalo holds back, as if knowing that if several individuals of the lion grab him, he will not be able to rely on solidarity from the rest of his own group.
 
Furthermore, here is a point that I suspect will be overlooked by most naturalists: the mother, when attacked by the lion, does not flee into the nearby water.
 
If this were the river buffalo (Bubalus bubalis) or the water buffalo (Bubalus carabanensis), I expect that the mother would take refuge in the river immediately.

I realise that in plain view was a group of the hippopotamus (Hippopotamus amphibius), and that species would not necessarily show any solidarity with a buffalo. However, this footage suggests that the African savanna buffalo is quite different from its tropical Asian counterparts in its relationship to water. It obviously sees no refuge in the river.

Not only waterbucks (Kobus ellipsiprymnus and Kobus defassa), but even antelopes such as Strepsiceros strepsiceros and Hippotragus niger that have no particular aquatic affinity, would, I expect, have gone straight into the water to save themselves (http://www.dailymail.co.uk/news/article-2609382/Kudu-tell-African-antelope-escaped-pack-hyenas-Clever-prey-conceals-pack-zebra.html).

It is in the light of this general pattern, in which most ungulates are almost as vulnerable to predators as they would be were their horns absent, that we can understand the basic nature of Spanish bullfighting: choreography rather than a real contest of impalation. The matador pierces the bull, which is incapable of reciprocating - except by accident.

to be continued in https://www.inaturalist.org/journal/milewski/86153-most-ungulates-are-surprisingly-inept-at-using-their-horns-against-predators-part-2#...

Posted on Μάιος 17, 2021 0110 ΜΜ by milewski milewski

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The hook-lipped rhino (Diceros bicornis) is certainly defensive, to the point of seeming aggressive. However it too tends to be inept in actually striking blows, partly owing to incongruously poor eyesight.

Αναρτήθηκε από milewski σχεδόν 3 χρόνια πριν
Αναρτήθηκε από milewski σχεδόν 2 χρόνια πριν

Interesting. The elk sometimes will use antlers to try to fend off wolves, but they aren't well equipped to fight off a whole pack very well.

Αναρτήθηκε από beartracker σχεδόν 2 χρόνια πριν

The difference between Carnivora and their prey (e.g. ungulates) is not so much weaponry but skill, i.e. a behavioural programming to use weaponry to lethal effect.

It’s true that Carnivora have sharp teeth and sharp claws. But these organs are, in themselves, no more potentially dangerous than the organs possessed by most ungulates and many other herbivores: horns, antlers, hooves, and even teeth (e.g. in pigs and rodents). If anything, it is the herbivores that have the more impressive weapons in the sense of sheer mass and force of weaponry. All the teeth and claws of a lion add up only to a small fraction of each horn of an African buffalo, even if we look at the female of the bovine. And even a cane rat has such formidable teeth that, if used well, these could really hurt any attacker.

The real difference is not weaponry as such; it is the ability, willingness, eagerness, skill, and versatility to use this weaponry.

Any intact adult human has fists, elbows, feet, knees, a forehead, teeth, and sheer weight. These count for little in a pusillanimous person, unpractised in fighting, who has not learned how to use these weapons and who has not adopted a habitually defensive attitude. But with the right training and attitude, even a small woman can inflict lethal harm on another human in a fight.

Consider the difference between a channel-swimmer and one who drowns in a pond: same human physique, but incomparably different skills in using the arms, legs, breathing, co-ordination, etc. The human species can swim well, not because we have ‘swimming organs’ but because we use what organs we have to excellent effect if trained and ready.

Many herbivores do have remarkable ‘fighting’ skills, or at least sparring skills, and the males practise hard to master their ‘martial arts’, which tend to be species-specific because the purpose of the antagonism is to gain mating rights. So, for example, many antelopes and deer spar with their horns/antlers, and it may take half of the life of the male to perfect his skills to the point that he can use his weaponry well.

So it is not just the case that herbivores have opted to abandon any thought of fighting and just get on with what they are good at, i.e. eating and breeding and growing rapidly. They do ‘fight’ and they do practise their fighting. It is just that all their martial arts seem to count for little when they are attacked by a predator.

Αναρτήθηκε από milewski σχεδόν 2 χρόνια πριν

 As part of the same explanation, I can point out a consistent difference between carnivores and herbivores. Whereas the herbivores gain independence as soon as they are weaned, it is normal for carnivores to continue to depend on their mother for years. This is because a leopard or cheetah, once weaned, can still not hunt for itself until it has received enough lessons from its parent and practised enough. Herbivores have no such lag because there is so little to learn about eating plants. My point is that the superior deployment of weaponry by carnivores is consistent with their ‘schooling’ period between weaning and independence; this is their time to learn ‘martial arts’.

Of course, it is true that much sparring and even fighting among male herbivores is ‘ceremonial’ rather than intended to be lethal. Even the mutual ramming by males of the bighorn sheep, which muster impressive force, do no more than stun, for which the skull is adapted with well-developed shock absorbers. But on the other hand many sharp-horned bovids do have ‘skin-shields’ on their necks, shoulders and flanks, to reduce the risk of being impaled.

The only ungulates that deter predation by means of their weaponry seem to be certain suids, e.g. Potamochoerus larvatus. It seems significant that the canine teeth of bushpigs, so dangerous to predators, are not even visible - being hidden inside the mouth. Even in suids, the weaponry is partly in compensation for relatively short legs and small eyes.

Αναρτήθηκε από milewski σχεδόν 2 χρόνια πριν

Great point about how the diet affects this. Eating plants doesn't take much time to learn, but hunting does take time to learn well.

Αναρτήθηκε από beartracker σχεδόν 2 χρόνια πριν

@beartracker @davidbygott @maxallen

Example of reluctance of wildebeest to use horns even when determinedly defending infant against African hunting dog:
  
The following video clip (https://www.youtube.com/watch?v=cZUBC1SSWN8) is interesting w.r.t. the parental defence by a mother of the western white-bearded wildebeest (Connochaetes mearnsi) of its infant against a group of the African hunting dog (Lycaon pictus).

This individual ostensibly succeeds on this occasion. However, I found two aspects of this footage particularly interesting.
 
Firstly, the mother seems remarkably unwilling, or unable, actually to deliver blows with her horns. It is merely the threat of this that eventually wins the day against the predators. However, it might have been more effective to actually inflict wounds.
 
Secondly, I was surprised to see that, as the mother and infant escape the scene, the mother style-trots for for most of the way, as if to say to the dogs ‘I’m still fit, so if you try again you’ll fail again’.

This post-crisis ‘stotting’ is new to me. It is particularly interesting because wildebeests (at least of other spp.) also use a different fitness-display, that of ‘prancing/cavorting’. This is typically associated with the black wildebeest (Connochaetes gnou), but also occurs in other spp. (https://www.flickr.com/photos/130290763@N08/50155063702/ and https://www.shutterstock.com/nb/video/clip-5778965-cavorting-animal-mad and https://www.youtube.com/watch?v=K6fQrirdP2w and https://www.warrenphotographic.co.uk/23373-wildebeest-capering).

I would like to understand better why, in antagonism with predators, wildebeests prance/cavort in some situations, and style-trot in others.

Also see https://blog.londolozi.com/2021/01/26/wildebeest-are-anything-but-stupid/.

Αναρτήθηκε από milewski σχεδόν 2 χρόνια πριν

Although Oryxes are inept at self defense, it’s apparent that Sable (Hippotragus niger) have highly efficient defenses/bluffs

Αναρτήθηκε από paradoxornithidae σχεδόν 2 χρόνια πριν

https://youtu.be/WAPh8Bch5xU
In this video, the H. niger doesn’t use it’s horns directly so to say, but keeps distance by charging and displaying horns to the L. pictus pack, whilst being in the water. Combing multiple means of escape, and deterrent.

Αναρτήθηκε από paradoxornithidae σχεδόν 2 χρόνια πριν

According to Valerius Geist, even Oreamnos americanus hastily quits the area when a group of the wolf arrives (https://www.youtube.com/watch?v=TBFGlCipnqo). This is remarkable, because this species a) can evade predators by means of its sure-footedness on cliffs, b) is renowned for its intimidating horns, and c) usually seems more phlegmatic than other ungulates in the proximity of carnivores.

Αναρτήθηκε από milewski σχεδόν 2 χρόνια πριν

Interesting post!

Αναρτήθηκε από beartracker σχεδόν 2 χρόνια πριν

@tonyrebelo @davidbygott @maxallen @beartracker @ludwig_muller @paradoxornithidae @botswanabugs @jeremygilmore @simontonge @tandala @oviscanadensis_connerties

Bos grunniens vs Panthera uncia:

The following
(https://www.youtube.com/watch?v=APuua4Gci5U) seems fairly typical of the ineptness of anti-predator defence in ungulates.

The mother of the attacked infant does eventually succeed in saving its offspring from predation. And it does score one impressive hit, in which it uses the horns to lift the predator off the ground, possibly inflicting internal injury.

However, a) it uses its horns clumsily despite these horns being more suitable-looking for such defence than are the horns of most other bovines, and most other ungulates, b) it fails even to try to use its superior weight to trample the predator, and c) the other adults in the group, although attending excitedly, fail to take obvious opportunities to horn, kick, or trample the predator.

Based on several similar video-clips I have watched in the case of Syncerus caffer vs Panthera leo, I find the two spp. of bovines similar in their 'dumb-looking' behaviour in these situations, despite a) the reputation of the African savanna buffalo for being a formidable adversary, and b) the fact that the domestic yak is not a wild species (https://www.inaturalist.org/taxa/889089-Bos-grunniens).

Αναρτήθηκε από milewski πάνω από 1 χρόνo πριν
Αναρτήθηκε από botswanabugs πάνω από 1 χρόνo πριν
Αναρτήθηκε από milewski πάνω από 1 χρόνo πριν

@botswanabugs Many thanks for posting that informative video.

Αναρτήθηκε από milewski πάνω από 1 χρόνo πριν
Αναρτήθηκε από milewski πάνω από 1 χρόνo πριν

@beartracker @maxallen @davidbygott @tonyrebelo @jeremygilmore @tandala @dejong @capracornelius @oviscanadensis_connerties @paradoxornithidae

The following shows how timid and tentative even Oryx gazella is vs predators, even in the case of a mother, and even vs a foe as small and weak as Acinonyx jubatus: https://www.youtube.com/watch?v=sMKkkW6jbug.

Αναρτήθηκε από milewski πάνω από 1 χρόνo πριν

@milewski have you seen this article ?
Dying for Dinner: A Cheetah Killed by a Common Duiker
Illustrates the Risk of Small Prey to Predators
Author(s): https://orcid.org/0000-0003-2702-5200Graham I.H. Kerley
Source: African Journal of Wildlife Research, 48(2)
Published By: Southern African Wildlife Management Association
https://doi.org/10.3957/056.048.024001
URL: http://www.bioone.org/doi/full/10.3957/056.048.024001

Αναρτήθηκε από botswanabugs πάνω από 1 χρόνo πριν

@botswanabugs Many thanks for this article, which is new to me.

Αναρτήθηκε από milewski πάνω από 1 χρόνo πριν

Drone footage of single individual of Canis lupus daring to attack adult Alces alces in water deeper than 0.5 m:

https://gephardtdaily.com/national-international/drone-video-captures-mooses-escape-from-hungry-wolf/

https://www.google.com.au/search?q=Moose+taking+refuge+from+wolves+in+water&sca_esv=568775834&sxsrf=AM9HkKkEZeZsggeRVxHadSdeGsEGa5UHVw%3A1695807270238&ei=JvcTZf_mDZ2RseMPyrmumAI&ved=0ahUKEwj_kcyvvsqBAxWdSGwGHcqcCyMQ4dUDCBA&uact=5&oq=Moose+taking+refuge+from+wolves+in+water&gs_lp=Egxnd3Mtd2l6LXNlcnAiKE1vb3NlIHRha2luZyByZWZ1Z2UgZnJvbSB3b2x2ZXMgaW4gd2F0ZXIyBRAAGKIEMggQABiJBRiiBDIFEAAYogRI0HhQpidYrmtwA3gFkAEAmAGzAqABwiKqAQYyLTE2LjK4AQPIAQD4AQHCAgQQABhHwgIIECEYoAEYwwTCAgoQABhHGNYEGLADwgIEECMYJ8ICChAhGKABGMMEGAriAwQYACBBiAYBkAYI&sclient=gws-wiz-serp#fpstate=ive&vld=cid:b416a714,vid:mhHZxxpc-B4,st:0

This footage is remarkable, because the wolf persists despite the moose taking refuge in water. Furthermore, the moose seems strangely inept in countering the wolf when the matter latches on to the skin at or near its elbow. Seemingly, all that the moose needed to do was to lie down on that side, in the water, and the predator would have been crushed or drowned. Furthermore, the attempts by the moose to use its corresponding hind hoof to kick the wolf, latched right in front of the hindleg, seem remarkably uncoordinated/imprecise.

Αναρτήθηκε από milewski 8 μήνες πριν

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