Animals

Parasitic species, which are permanent external (rarely internal) parasites, feed on the blood of ve ...

When spooked or excited, the boto will flush pinker.

They sometimes appear in fishnets and in this case are usually dried, salted and delivered to the ma ...

Some species on the other hand can grow much larger up to 80 mm (3 in).

At this time, they begin to feed on their victims' blood. It is estimated that a single sea lamprey is capable of killing 18 kg (40 lb) of fish annually.

There can be anywhere from 10 to 65 young (25 on average), some of which are unhatched or unfertiliz ...

So far, 64 species have been described in the heron family. These are water birds, until recently considered related to storks, but genetic tests have shown that they are closer to pelicans.

The average adult male weighs 5 to 8 kg, while the female weighs about 3.5 kg. Weight can vary depending on the season. Body length ranges from 45 to 90 cm and the tail averages 35 cm.

Delayed implantation means that the embryonic blastocyst doesn’t implant in the uterus straight away ...

Insects can be found both in water, on land, and in the air. Some live in droppings, carrion or wood.