Animals

Tuesday, 20 January 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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Red panda
The internet browser “Firefox” is named after the red panda.
It is also in the browser’s logo.
True seals
Depending on the species, seals may use different foraging tactics.
Some are filter feeders and feed on krill, while others suck small prey into their mouths or grab la ...
Red-necked wallaby
The gestation period of a red-necked wallaby is about 30 days.
The joey is born without fur, is blind, is the size of a bean, and weighs less than one gram. After ...
Sloth
Sloth’s fur consists of short and woolly and long and bristly hair.
The coloring depends on the species, e.g., the maned sloth’s fur is light-brown, its hair on the nec ...
Earthworms
Most earthworms are hermaphrodites.
They exchange gametes during copulation, which is called saddling. The process takes its name from t ...
Mallard
From the common mallard comes the domestic duck.
There are more than 300 breeds of these birds. They are bred for eggs, feathers, and meat but also a ...
Rice's whale
It is endemic to the northeastern parts of the Gulf of Mexico.
Tigers
Tigers, like lions, open their muzzles and extend their tongues to facilitate air access to olfactory receptors.
Octopus
Octopuses have a so-called black pouch.
This organ stores sepia, produced by a nearby gland. Octopuses use sepia to disorient a predator while escaping. They then spray a thick, characteristic black stain.
White-browed tit-warbler
Their mating season lasts from April to July.