Marine

Seen from below, the white bellies of lemon sharks help them to disappear in bri
Lemon sharks have personalities, make friends, use body language and learn tricks. They’re forcing us to rethink how we see big sharks, says Helen Scales.
Sea turtle
BBC Wildlife contributor Karen Emslie answers your wild question. 
Waves on Khalaktyrsky Beach on the Avachinsky Bay coast
The UK has around 17,800 km (11,000 miles) of coastline. That's about the length of 420 marathon races. With World Oceans Day taking place on 8th June, what can you do to get ocean-friendly?
Look out for bottlenose dolphins
Ferry travel can be an easy and convenient way to get to your holiday destination - offering ample leisure time during the journey and the chance to hopefully spot some wonderful wildlife! 
Hammerhead shark
Science writer Liz Kalaugher analyses the unmistakable hammerhead shark.
A yellow seahorse (Hippocampus kuda)
Marine biologist and photographer Matt Doggett answers your wild question.
Shark fins collected in Indonesia
Mark Carwardine discusses the issue of shark finning.
Grey seals in the snow at Donna Nook
Scientists studying the reaction of seals to stress have found differences between individuals, and that appearances can be deceptive - a calm-looking seal doesn't necessarily mean a stress-free one.
Common whelk
Q&A editor Sarah McPherson uncovers the mystery of a common beach find. 
Galapagos sea lions are not shy about where they take a nap!
Discover more about the most inquisitive mammal of the Galápagos Islands, the Galápagos sea lion.
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