How Fish Use Smell And Magnetic Fields to Navigate

A low-polygon animated salmon hides among some reeds.

Instead of using Google Maps, imagine how cool it would be to smell your way home — and while we’re at it, imagine “home” is thousands of miles away! In this animated short, Jordan Buxton explains how fish rely on their noses, as well as their sensitivity to Earth’s magnetic fields, to navigate long distances.

What’s Killing The Mekong Giant Catfish?

Eight pieces of fish-shaped candy sit in a stylized river made of yarn and glass pebbles.

Meet the Mekong Giant Catfish, which can weigh up to 770 pounds, has no teeth, and looks absolutely ridiculous. But they’re disappearing quickly — having been listed by the IUCN as a critically endangered species in 2011.