Animals

Monday, 28 September 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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Spiders
There are over 49.800 described species of spiders divided into 129 families.
The division is not yet finally systematized, because since 1900, over 20 different classifications of these animals have appeared.
Black Caiman
Black caimans are oviparous.
Females lay up to 60 eggs per clutch every two to three years, which hatch after approximately two months. Most juveniles do not survive past the third year of age.
Glass frogs
Most of glass frog species are not endangered.
As they are arboreal creatures, deforestation is the biggest threat to them.
Alligator snapping turtle
Females lay a clutch of 10 to 50 eggs on a nesting ground.
The incubation lasts for 3,5 to 5 months. Hatchling sex depends on the temperature of the developing ...
Brittle stars
To sustain life, the brittle star must have a central disc and at least three arms.
Regeneration of lost limbs requires a lot of energy, very often more than an animal can deliver by consumption. In many cases, it reduces fat deposit reduction and impairs gonadal function.
Spiders
Female spiders can lay up to 3000 eggs.
They are often stored in silk cocoons that maintain appropriate humidity. Spider larvae undergo metamorphosis while still in the cocoons and leave them when they reach a mature body shape.
Octopus
Octopuses were already observed by Aristotle.
He noticed that they could change their skin color and identified their sexual organs.
Boa constrictor
They reach sexual maturity at the age of 3-4 years when their length exceeds 180 cm.
Reaching sexual maturity does not stop growth. Boas continue to grow throughout their lives, although at a slower rate than during the juvenile stage.
Leeches
Leeches do not have a respiratory system.
They absorb oxygen with their entire body surface.
Hedgehogs
Depending on the species, hedgehogs can have between three and five thousand spikes.