Marine Biology

The mucus that covers fish has several functions, including protection from multiple dangers and serving as food for young fish. The substance may also be useful for us.

With their dark eyes, sharp teeth and fearsome reputation, all sharks are ruthless killers...aren't they?

A hybrid between a melon-headed whale and a rough-toothed dolphin has recently been discovered in the wild. The two parent species and the hybrid are intriguing animals to observe and study.

Whales are amazing creatures. They take the form of a fish, live exclusively in the water, but are definitely mammals. Some of them are the biggest known animals to inhabit Earth and they live long lives. Here are weird and little-known fun facts about whales that prove they are a wonder of nature.

Cuttlefish are spectacular animals, cunning and curious, with a strange beauty. They possess amazing camouflage abilities a chameleon wishes it had, and are the world's most intelligent invertebrate. This article will tell you why the cuttlefish is my favorite animal.

Pacific white-sided dolphins are intelligent and very social animals. This article describes the lives of the wild dolphins and of some rescued animals in captivity.

The frilled shark is a strange, deep-sea fish with a wide head, a huge mouth, and a long, eel-like body. Its population size is unknown. The fish is caught as bycatch in some areas, which is a concern.

The Knysna Seahorse owns several characteristics that makes it unique among seahorses. These special and delicate creatures face extinction in the wild due to unusual habitat and their popularity in the ornamental fish trade.

Killer whales, also known as orcas, are part of the dolphin family and can live anywhere saltwater is present.

Octopuses have fascinating abilities. Some have fins that help them move. Others demonstrate intelligence. The genome of one species is very unusual.

Invertebrates are diverse forms of animals. Here are nine (9) major groups of invertebrate animals and the most common examples of invertebrates under each type. There are also pictures of different major groups of invertebrate animals.

Narwhals are strange and fascinating Arctic whales. The males—and sometimes the females—have a very long tooth that grows through their lip, forming a tusk.

Coral bleaching is an event in which corals lose their pigment and main source of food. It often causes corals to die. Oxybenzone in sunscreens may contribute to coral bleaching.

Polar Bears live primarily near the North Pole, where they hunt seals for their blubber to survive. They are created to survive this cold environment and are adept swimmers.

Some sharks produce beautiful patterns of light in a process called biofluorescence. The light emission may have important functions.

The Mariana Trench is the deepest place in the ocean and contains some fascinating animals. NOAA has made some exciting discoveries about life in the trench.