Moray Eel

True Wild Life | Moray Eel | The moray eel is a large species of eel found in warm and temperate waters all around the world. Despite their snake-like appearance, moray eels (along with other eel species) are in fact fish and not reptiles. Moray eels are found in both deep and shallow waters in tropical and sub-tropical regions. Although moray eels can be find in cooler waters occasionally, they tend to remain in the crevices deep in the ocean rather than venturing into shore. The largest populations of moray eels are found around tropical coral reefs where they are numerous different marine species found in large numbers.

There are around 200 different species of moray eel than can range in size from just 10cm long to nearly 2 meters in length. Despite their varying size and colour all moray eels are fairly similar in appearance with an elongated body, slightly flattened towards the tail. Moray eels also have large eyes and mouths which contain large teeth. The moray eel is a relatively secretive animal, spending much of its time hiding in holes and crevices amongst the rocks and coral on the ocean floor. By spending the majority of their time hiding, moray eels are able to remain out of sight from predators and are also able to ambush any unsuspecting prey that passes.

Like many other large fish, the moray eel is a carnivorous animal surviving on a diet that consists of only meat. Fish, molluscs including squid and cuttlefish and crustaceans such as crabs are the main source of food for the moray eel. The moray eel is often one of the most dominant predators within its environment but moray eels are hunting by some other animals including other large fish like grouper and barracuda, sharks and humans.

Moray eels tend to mate when the water is warmest towards the end of the summer. Moray eel fertilisation is oviparous, meaning that eggs and sperm are fertilised outside of the womb, in the surrounding water, which is known as spawning. More than 10,000 eggs can be released at a time, which develop into larvae and become part of the plankton. It can take up to year for the moray eel larvae to have grown big enough to swim down to the ocean floor to join the community below.

Electric Eel

True Wild Life | Electric Eel | Electric Eels are found in the waters of South America, and are capable of generating a 500volt electric shock through 28ft of still water. The shock that the electric eel produces is enough to harm any large mammal, including humans. Electric eels can grow up to 2.5 metres and only need to surface for air every 10 minutes due to the eels complex circulatory system. Electric eels tend to live in muddy beds in calm water, eating fish and small mammals.

Despite the name electric eel, the electric eel is actually related most closely to a catfish and not the common eel fish and many electric eel adults tend to be smaller than their eel fish counterparts. The electricity that the electric eel uses to shock its prey, is produced in pairs of organs that are found in the abdomen of the electric eel. These electricity producing organs take up around of 80% of the body of the electric eel leaving only 20% of the electric eels body free to hold the electric eels vital organs that it needs to survive.

Electric eels are found inhabiting fresh waters of the Amazon and Orinoco river basins in South America, and the electric eels tend to prefer the river floodplains, swamps, coastal plains, and creeks. Electric eels tend to live on muddy bottoms in calm water and in stagnant arms of rivers, where the electric eel spends most of its time hunting.

The electric eel is also known for its unusual breeding behaviour. In the dry season, a male electric eel makes a nest from his saliva into which the female electric eel lays her eggs. As many as 17,000 young electric eels will hatch from the eggs in one nest. These young electric eels feed mainly on invertebrates found on the river bed, however, first-born baby electric eels have been known to gobble up the eggs from batches of other electric eels that were laid only a short time after themselves.