Marine Biology

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.

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

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

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.

Pyrosomes are strange creatures that swim in the ocean and are bioluminescent. They are undergoing a puzzling population increase off the west coast of North America.

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.

Sardines and herring are nutritious foods. The behaviour of the living fish is interesting to study, however. They live in groups and communicate with their companions.

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.

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.

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.

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

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.

The ochre sea star is a colourful invertebrate. Unfortunately, its population has been seriously affected by a wasting disease. The condition causes the body to disintegrate into a goo as though it's melting.

Lobsters are interesting animals to observe and study in a natural setting. They are popular food items, but the way in which we kill them is controversial.

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.