Latest Kaustuv Roy Stories
New research shows that extinction events tend to "cluster" on evolutionary lineages, wiping out entire â€œchunks of lifeâ€ as related species with a common ancestor vanish together.
Global calamities like the one that doomed most dinosaurs forever alter the varieties of life found on Earth, but new research shows that it doesn't take a catastrophe to end entire lineages.
Biologists have long believed that bigger is better when it comes to body size, since many lineages of animals, from horses to dinosaurs, have evolved into larger species over time.
- A gift; a largess; a gratuity; a present; a dole.