Darwin saw small birds. They were finches. He drew them. The finches had different beaks. He wondered why.
Darwin saw small birds. They were finches. He drew them. The finches had different beaks. He wondered why.
Some finches had pointed beaks.
They used them to eat insects.
green warbler‑finch
Other finches had stubby beaks.
They used them to eat seeds.
ground finch