The main difference between hair and fur is where it grows, not what it's made of.
There are some important differences between horns and antlers.
Scientists are using bone histology to sort things out. They've already concluded that Stygimoloch, was a juvenile Pachycephalosaurus, not a new species.
As you are making your Thanksgiving driving over the river and through the woods, be sure to keep clear of the deer!
Animals have mastered blending in with their surroundings. Yet, why do some animals have lighter fur on their bellies than on their backs?
Botflies are parasites that deposit larvae inside the noses of their hosts, including reindeer. To adapt, the deer learn elaborate behaviors to avoid the flies.