Marine Animals

Harbour porpoise ready for postmortem at ZSL (c) CSIP-ZSL

Young porpoises in the UK are ingesting toxic milk

European Eel, Anguilla Anguilla, single head shot of fish in reeds. Warwickshire, August 2014

Eel recorded embarking on its epic migratory voyage

Sea lion - Becky Douglas

9 fascinating facts about Galápagos sea lions

Manta feeding in trash Indo - Copyright Andrea Marshall, Marine Megafauna Foundation

Ocean giants consuming microplastics when feeding

Krill, the foundation of Antarctica's marine food chain, swim in a tank on Palmer Station, in Antarctica.

Insects & Invertebrates

The lowdown on krill

A group of king penguins. Mint Images - David Schultz/Getty

5 fascinating facts about king penguins

A baby humpback whale plays as it swims near the surface in blue water off Tonga in the Pacific Ocean

10 fascinating facts about humpback whales

Detail of hands showing microplastics on the beach

People & Wildlife

Everything you need to know about microplastics

Asteroid impact. Illustration of a large asteroid colliding with Earth on the Yucatan Peninsula in (what is modern day) Mexico. This impact is believed to have led to the death of the dinosaurs some 65 million years ago. The impact formed the Chicxulub crater, which is around 200 kilometres wide. The impact would have thrown trillions of tons of dust into the atmosphere, cooling the Earths climate significantly, which may have been responsible for the mass extinction. A layer of iridium- rich rock, known as the K pg boundary, is thought to be the remnants of the impact debris. Here, the impact is seen from the ocean. The animal in silhouette is a mosasaur, an extinct marine predator.

Acidification behind last great marine mass extinction

Kevin Schafer/Getty

Stranded whales visible from space

Fungie the free Dingle dolphinis happy jumping around in the bay.

Famous dolphin secures a Guinness World Record

Drones used to weigh whales

Rhenopyrgids Image

New species of fossilised sea creature described

Common seal and pup. © Graham Mee/RSPB

Seal pups counted in the Thames

Grey seal (Halichoerus grypus) pup covering its face with one of its flippers on the beach. © Marcos G Meider/Getty

Identify Wildlife

How to tell the difference between grey and common seals