Animals

Sunday, 8 February 2026
15 facts about fleas
15 facts about fleas
External parasites
Fleas are one of the most hated insects by pet owners. Once they find their way onto a dog or a cat, they are very hard to remove. Reproducing at a ve ...

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Basking shark
Basking sharks can reach enormous sizes.
As an adult, the basking shark usually reaches a body length of 6.70 to 8.80 meters, but can reach 1 ...
Jellyfish
The average lifespan of jellyfish depends on the species.
Some live for several days, some can live up to a year.
Zebra mussel
They fall prey to fish and waterfowl.
While birds eat adult forms, some fish species feed on larvae too. Among mammals, muskrats are one of their common predators.
Dodo bird
The dodo bird is an extinct flightless bird that lived on the island of Mauritius, in the Indian Ocean.
It was endemic there, as was its cousin the solitary drontium (Pezophaps solitaria) from the neighbo ...
Narwhal
It is estimated that 1 in 500 narwhals has not one but two fangs.
Goblin shark
Goblin shark is a deep-sea, the only living representative of the Mitsukurinidae family.
Mitsukurinidae appeared in the late-Mesozoic era, about 125 million years ago. The oldest Mitsukurin ...
Shoebill
Shoebills are nonmigratory birds that move periodically in search of food.
Sometimes the disturbance of their natural habitat by humans is the reason for their migrations.
European tree frog
The skin of European tree frogs is smooth on the back and porous on the abdomen.
Their back can be green, gray, or light brown. The color can change due to temperature, humidity, or ...
Guinea pig
In the West, the guinea pig was first described in 1554 by Swiss naturalist Conrad Gessner.
The earliest known European illustration of a domestic guinea pig is a painting by an unknown artist ...
Otters
Depending on the species, otters can be both monogamous and polygynous.
Promiscuous behavior is, however, more common.