Animals

Friday, 9 January 2026
19 facts about snails
19 facts about snails
Also called gastropods
Snails are mollusks and are one of the most numerous animal species in the world. In terms of species diversity, they are second only to insects. Even ...

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Octopus
While swimming, the systemic or main heart stops working.
This causes the octopus to tire quickly and therefore the organisms prefer to move along the bottom using their arms.
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Northern pike
They reach sexual maturity at the age of two years.
Young specimens - one year old - are also able to spawn, but in their case, the quantity of eggs laid is insignificant.
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Zebra mussel
They originated from the Caspian Sea and the Black sea region.
In the 19th century, it was introduced to Europe made its way to North America in the 1980s.
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Pink river dolphin
They are not very acrobatic, contrary to other dolphins.
They would rather emerge their snout above the water's surface than jump out as dolphins do.
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Grey heron
Although they lead a solitary life, they group during the breeding season to increase the chance of finding a pair.
We call such a group of herons a siege. When they encounter a competitor, they point their beaks down and rush towards him to scare him.
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Crustacean
The pistol shrimp is a marine terror of small fish and invertebrates. It hunts its prey in a very unusual way.
The right pincer of these animals has undergone a modification that allows them to attack their targ ...
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Boa constrictor
The mating season lasts from April to August. A male will mate with several females during this time.
It is the female who chooses her mate, first by attracting him with pheromones and then by fighting ...
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Sperm whale
A distinctive feature of this species is its huge head, which can be up to a third of the total length of a sperm whale.
It is almost rectangular, widened at the end of the snout, and steeply truncated. On the left side o ...
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Sea otter
The female gives birth to one pup that weighs 1.4 to 2.3 kg (3 to 5 lbs).
Twins are very rare, occurring in only about 2% of all births. It is even less likely that both pups will survive.
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Pink river dolphin
Like all dolphins, the pink river dolphin sleeps with one eye open.
When the left half of the brain sleeps, the right eye will be closed, and vice versa.
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28 facts about spiders
28 facts about spiders
One of the first creatures to appear on land
The first ancestors of today's specimens appeared on Earth about 400 million years ago. They evolved from marine organisms of the chelicera subphylum. ...
17 facts about dolphins
17 facts about dolphins
Very intelligent and social mammals
They live in both oceans and rivers. They often travel in large herds, sometimes exceeding 1000 individuals. They have their language, which we have n ...
41 facts about octopus
41 facts about octopus
Very intelligent animals with amazing abilities
Octopuses are cephalopods with eight arms. So far, about 300 species of octopuses have been identified. The first octopuses appeared on Earth about 32 ...
20 facts about earthworms
20 facts about earthworms
Very useful organisms that live in the soil
They are geographically very widespread organisms. They are found in Europe, Asia, North America, and northern parts of Africa. They inhabit all types ...
22 facts about crustacean
22 facts about crustacean
Armored invertebrates
They mainly inhabit aquatic environments where they live on the seafloor (a record-breaker has been found at a depth of 10.5 km) or float in the depth ...
19 facts about central bearded dragon
19 facts about central bearded dragon
Pogona vitticeps
This interesting lizard occurs only on the Australian continent. Although its appearance may be discouraging, in fact, it is a completely harmless ani ...
19 facts about grey heron
19 facts about grey heron
Ardea cinerea
This large and interesting water bird appears in Central Europe during the breeding season and only in the north-west of the country can it be found a ...
16 facts about tasmanian devil
16 facts about tasmanian devil
Sarcophilus harrisii
They used to inhabit the Australian continent, but for unexplained reasons, disappeared from there about three thousand years ago. Today, they can onl ...
20 facts about sperm whale
20 facts about sperm whale
A vital element of the marine ecosystem
In the depths of the oceans, where sunlight loses its meaning, reigns one of the most majestic and enigmatic inhabitants of the seas–the spermaceti sp ...
20 facts about mallard
20 facts about mallard
Anas platyrhynchos
The common mallard is the most popular game bird in Central Europe, i.e. Poland. It is very numerous and easily inhabits various environments to which ...
14 facts about Brazilian wandering spiders
14 facts about Brazilian wandering spiders
They travel stowaway, and on top of that they bite
These spiders are found in forested areas of South and Central America. They actively hunt small animals, which they then paralyze with their venom. T ...
19 facts about American mink
19 facts about American mink
Furry commando
The American mink is a species common in North America, where it lives in the wild. It was introduced to Europe in the 1950s and spread throughout Eur ...
13 facts about European mole cricket
13 facts about European mole cricket
Gryllotalpa gryllotalpa
They get their name from the fact that they often damage crops and cause losses. At least that used to be the case, as the population of these insects ...
17 facts about spotted hyena
17 facts about spotted hyena
Laughing hyena
The spotted hyena is one of Africa’s most recognizable animals, also known as the laughing hyena. It is the largest living member of the hyena family, ...
20 facts about guinea pig
20 facts about guinea pig
Cavia porcellus
The guinea pig (Cavia porcellus), also known as the domestic cavy, is a medium-sized rodent native to the Andean regions of South America. Where it co ...
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