One has stripes, and one doesn't. But do the differences between lions and tigers go deeper than that?

Officially, Earth boasts roughly two million species. Unofficially, scientists suspect there could be millions — perhaps over 100 million — more. Each year, scientists add thousands of new species to ...

Add Yahoo as a preferred source to see more of our stories on Google. The Sumatran tiger is the rarest tiger species in the world and is critically endangered in the wild. Native to the islands of ...

This story is free to read because readers choose to support LAist. If you find value in independent local reporting, make a donation to power our newsroom today. Officially, Earth boasts roughly 2 ...