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Posts Tagged ‘Caniforms’

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He takes down Ray Comfort’s nonsense.  Comfort has no clue.

He also argues that Lycaon pictus ought to be in the genus Canis, for exactly the same reason I feel it should be. It and the dhole are more closely related to the other species of the genus Canis than the black-backed jackal and side-striped jackal are. Xenocyon lycoanoides, the extinct ancestor of the African wild dog, should also be part of this very important genus in the dog family.  (See the dog phylogenetic tree).

He is a little off on the origins of the dog. The East Asian theory of dog origins seems to have been falsified through the genome-wide study that utilitized SNP chip technology found that dogs had greater genetic similarity with Middle Eastern wolves, which suggests that the Middle Eastern wolves, not the East Asian wolves, are the main ancestors of domestic dogs.

Epicyon and the Amphicyonids make an appearance in this video, as to the “dog-bears” (Hemicyonids).

The Caniformia suborder of Carnivora has the most diverse species. Not only does it have domestic dogs, which have greater diversity in head morphology than the whole order Carnivora combined, it includes the smallest member of the order (the least weasel) and the largest (the southern elephant seal). Yes, Carnivora includes the seals, walruses, and seal lions, which are now classified within the Caniformia suborder.

Red pandas are fascinating because of their status as a “living fossil.’

And giant pandas are bears with fused chromosomes.  The two animals evolved their bamboo diet and their very similar s specialized wrist that acts like a thumb in parallel with with each other. Their common ancestor in the basal Caniformia didn’t have that thumb wrist or the specialized bamboo diet. Because both of these animals are derived from meat-eating Carnivora ancestors, they have not developed the ability to digest cellulose, so they have to eat tons of bamboo to survive. If these animals had been designed, one would think the designer would have put in some digestive bacteria in them to help them digest cellulose.

Please note that hyenas are missing from the Caniform cladistics video. Simple reason:  Hyenas are not in Caniformia. They are in the other big suborder of Carnivora, Feliformia.  Yes. Hyenas have a closer common ancestor with cats than with dogs.

This is a very good video.

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