Passengers and crew on a boat headed from Ventura to Santa Cruz Island spotted a 20-foot basking shark this week. Here's what to know.

Basking sharks are truly enormous – second only to whale sharks in size – and yet many people have never even heard of them. In this episode, we take a closer look at these gentle filter feeders, ...

Some nights, when I should be doing something sensible or useful, I end up looking at pictures of blue whales and feeling very, very tiny. We talk a lot about the megafauna that are gone – mammoths, ...

Sharks, diverse and vital for ocean health, range from gentle whale sharks filtering plankton to swift shortfin makos hunting prey. Bull sharks uniquely navigate both saltwater and freshwater ...

A juvenile whale shark swam from Madagascar to Seychelles, marking the first confirmed movement between the two nations.