Cockroaches that catch a ride on ants. Grasshoppers that climb aboard sheep. Hitchhiking animals are more common than you think. A classic example of phoresy, the remora uses a modified fin that ...

Detroit is the pilot city for the Giant Sequoia Filter Forest. The nonprofit Archangel ... circumference at the base. They can live for more than 3,000 years. “Here’s a tree that is bigger ...

Countless dirty secrets swirl around the way animals on factory farms live, but an even uglier one may be the way they sometimes die. “If everyone had to work a day in a meatpacking plant ...