Riley Black’s new book, When the Earth was Green, uses the latest research to envision the ancient worlds of our favorite prehistoric animals.

Many Animals and Plants Are Losing Their Genetic Diversity ... By the mid-1990s, the remaining big cats in southern Florida showed clear signs of inbreeding – with kinked tails and low sperm ...

This makes control of invasive plants and pests challenging because ... that provides new insights into how the body plan of these animals develops along a central axis from their "head" to ...