God created bats with all their genetic diversity just thousands of years ago. Like other creatures, they are able to move in and fill ecological niches. The giant burrowing bat is yet another example of design-based adaptation. Read more: http://www.icr.org/article/10449/
This worksheet has 32 Living Environment Regents questions about competition between species and the ecological niche of organisms. Questions are both multiple choice and short answer. This makes a great homework sheet, quiz, or in-class review. An editable Word document and answer
The Aye-Aye, a "native to Madagascar that combines rodent-like teeth with a long, thin middle finger to fill the same ecological niche as a woodpecker. It is the world's largest nocturnal primate, and is characterized by its unique method of finding food; it taps on trees to find grubs, then gnaws holes in the wood and inserts its elongated middle finger to pull the grubs out."