The fauna and flora of Australia are very different from those of the rest of the world. Why might this be true?

What were the two major "problems" that had to be solved before plants, animals, and fungi could fully move into terrestrial habitats?

Plants colonized land in the company of __________; their symbiotic relationships still exist today.

Which of the following best describes how the breakup of Pangaea affected evolution?

Lake Malawi, in the African Rift Valley, is home to more than a hundred species of cichlid fishes, each with slightly different diets and habits. All these species probably evolved from a common ancestor, making them an example of __________.

Although they originated around 180 million years ago, mammals underwent an adaptive radiation starting approximately 65 million years ago. Why?

How does continental drift affect speciation?

Mutations in what class of genes have probably been responsible for many of the changes leading to the great diversity of life existing today?

If the feathers of extant flying birds originally arose as thermoregulatory devices in ancestral reptiles, then flight feathers could be accurately described as __________.