Not that I am aware of. There have been examples of horned rodents found in the fossil record, but they were unlikely to have been carnivorous.
Are there any carnivorous mammals that have horns (not tusks or large teeth)?
http://en.wikipedia.org/wiki/H... Report It
Reply:No. But your question also doesn't make sense. A horn is a defensive weapon, like tusks (which can also be used as a tool). A carnivores greatest defense is their teeth. For your scenario to work in a world of natural selection you would need the horn or tusks to hunt and explain why that is metabolicly better for the animal than using teeth (which are adapated to eat meat and they will have anyway).
Then again, in a world of natural selection we assume what is out there is metabolicly accurate so if it did exist, I guess we would be trying to figure out why.
Oh and by the way, the Narwal has a tusk, not a horn. As the person said, it's a toothed whale and that tusk is a modified tooth, not modified hair (which is what a horn is).
Reply:no
Reply:Yes! The narwhale. It's a toothed whale - that means they are carnivorous, and whales are mammals.
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