Animals Directory

The same family as sharks, can grow to 8.4 meters in size and weigh about 1,400 kg, in some respects it is a great unknown to man. It was first seen by Dondorff in 1798.

Habitat

Seas inhabit temperate waters throughout the world where they feed on plankton, small fish and squid. Generally, like sharks, are opportunistic remoras attached to the bottom, looking for the scraps that remain of their feeding and also seek protection. In areas like the coasts of the Philippines, California and the Gulf of Mexico its population was decimated in the nineties by the lawlessness in the hunting spear. Its population is currently unknown and whether or not in danger of extinction, in any case is considered a vulnerable species in the areas mentioned above.

Reproduction

It is similar to some sharks. The male has a sperm transmitter organ similar to a pair of penises called claspers that develop along the inner pelvic, each has a duct through which sperm is transferred to the female, which produces the fertilization.

During courtship, one or more males pursue a female. In the end the winning male grasps a female’s wings between your teeth and presses his belly against her, bend one of his claspers and inserted into the opening of the female. Copulation lasts about three seconds.

To be ovoviviparous fertilized eggs remain inside the female, for a time unknown but is estimated to be between 9 and 12 months or more. They usually have one or two offspring but it is unknown when and where you stand, but the few records that exist in this regard indicate that they do in shallow water and the hatchlings are between 1.2 and 1.5 m at birth. Between pregnancies could take a year off to recharge. It is estimated that they can live 50 years or more.

It has also been found that the male tends to kill their opponents in part of courtship.

Immigration

Given the dispersed nature of their main food, plankton, it is likely to migrate, but where and when is something that is unknown and currently is studying setting some specimens with labels, or by sonic telemetry at different locations. As you can see, these marine animals are extremely impressive sight.

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