A clever tropical fish has flipped how biologists are thinking about memory, brains and visual recognition in the animal ...

Ciguatera—a toxin that accumulates in reef fish—is a common cause of seafood poisoning. Learn which fish are safest to order ...

Parrotfish construct a cocoon made from mucus to protect themselves when they are sleeping. It's like a personal mosquito net ...

These are the brightly coloured fish most commonly found in aquariums. It is estimated that around 10 per cent of British ...

These fish will all add a dazzling splash of colour to your aquarium. From garden ponds filled with Koi Carp to the humble goldfish bowl – the UK is a nation of fish lovers. The Pet Food Manufacturers ...

Some aquarium fish carry price tags that could challenge high-end gadgets, luxury cars, and even some small homes. Yes, you read that right! These tiny beings swimming gracefully in a tank can be ...