Speed and precision are key skills the sailfish must use if it's to catch its prey.
Flying fish not only have to protect themselves, but also thousands of their eggs. Also, the male weedy sea dragon must take the female's eggs to look after.
The young convict fish seem to help their parents feed in exchange for a place to stay, and the sarcastic fringehead must fight off trespassers on his patch.
Certain fish can actually leave the water; these include the mudskipper, which can breathe oxygen, and the goby, which tries to suck its way up a waterfall so it can lay eggs.
Some fish form a bond with the unlikeliest creature and the Jack fish bothers the shark in order to get clean. Also, male clown fish must be wary of the female as well as predators.
A shoal of anchovies come together as one to outwit a sea lion and snappers try to spawn in mass numbers.
A closer look at the making of Life, including how the cameramen filmed under water with a limited amount of air whilst trying to avoid getting caught up in the action.
Atlantic sailfish are large fish that can weigh up to 60kg. They are extremely fast swimmers and have developed specialised methods of hunting in packs.Wildlife Finder: enter the underwater world of the Atlantic sailfish
Flying fish are a family of fish that have unusually large pectoral fins that act like wings and enable them to glide through the air. This ability is particularly effective when evading large underwater predators.Wildlife Finder: discover more about these 'winged' fish
Weedy sea dragon
Weedy sea dragons are found along the southern coast of Australia. Like seahorses and pipefish, these animals make very conscientious fathers and carry their eggs around with them.Wildlife Finder: find out more about the weedy sea dragon
Gobies are the largest family of fish in the world. Within their ranks are the mudskipper and the Hawaiian goby. Both of these species feature in the fourth episode of Life.Wildlife Finder: delve into the underwater world of the gobies
- David Attenborough
- Executive Producer
- Michael Gunton
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