If you think mermaids aren't real, you haven't seen the professional mermaids with WW Mermaids as they swim with fish ...

This six-inch-long, bright-yellow fish is Hawai‘i’s most abundant butterfly fish. On the deep-water ledges off the island of Ni‘ihau there are schools of over 1,000 milletseed butterfly fish ...

Then there’s the dusky butterflyfish (Chaetodon flavirostris), an east coast species with a smoky-grey-to-yellow transition similar to the wrought-iron butterfly fish’s colouring. I’ll leave you with ...

What Ethan Kocak wanted to know was what killed it. Kocak had bought the bandit-masked, yellow-and-black fish to get rid of the anemones that had taken over his 40-gallon coral reef aquarium.

This beautiful, six-inch--long butterfly fish is just one of about 25 species of butterflyfish that live in Hawai i, but it also lives all through out the tropical Pacific Ocean and the Indian Ocean.

The team observed 3,700 encounters between butterflyfish. Before the coral bleaching event, different species of butterflyfish were able to resolve disputes using signalling around 28% of the time ...

Scientists have named a new species of butterflyfish discovered in the deep reefs of the Papahanaumokuakea Marine National Monument after a Kona diver who has assisted in the collection of reef ...