Antelope
Photograph of a group in the American Museum of Natural History, New York
First see the picture on page 103. These are antelope. Look at the horns carefully. They are something like a cow's horns; only, a cow's horns are sometimes bent and twisted in different ways. But the antelope's horns point upward, and are much longer than a cow's horns. They sometimes look almost like a pair of long and thick spikes, pointed at the top.
Now look at the picture on page 109. These are deer. Look at the horns carefully—only, they are not called horns when the animal is a deer, but antlers, which is a special name. So take a good look at the deer's antlers. There are two of them, and they grow from the top of his head, like the antelope's horns.
But look again. The antlers start from the head as two spikes, but higher up each antler branches out into many parts. In fact, near the top each antler looks something like the branches of a small tree without leaves.
So now you can always tell which is an antelope and which is a deer: the antelope's horns have no branches, but the deer's antlers have many branches.