




Hydra vulgaris
Hydras are tiny, freshwater creatures with tentacles that help them catch their food. They can regenerate if they're cut into pieces, making them amazing creatures to study!
生息地: Freshwater
The Hydra is a tiny, tube-shaped freshwater polyp, typically translucent white, green, or brown. It has a ring of slender tentacles around its mouth, which it uses to capture food. Its body is often attached to submerged surfaces.





カテゴリ
Invertebrateレア度
Common
危険度
2/5 · 低い
スナップ
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Hydras lack a brain, heart, or lungs, yet survive complexly!
Some Hydras can host tiny algae, making them look green!
These tiny animals can even survive being frozen solid and thawing!
They can stretch their bodies over ten times their usual length!
Hydra can regrow its entire body from just a small piece because of potent stem cells that help them repair injuries.
Hydra can continuously replace its cells, avoiding aging and potentially living indefinitely under ideal conditions.
Hydra has specialized stinging cells (nematocysts) on its tentacles that help them paralyze tiny prey.
Tiny carnivores that ambush and sting small aquatic creatures using their tentacles.
Daphnia pulex
A common crustacean prey item.
Cyclops bicuspidatus
Actively captured by Hydra's tentacles.
Chironomus plumosus
Young midge larvae are food.
まだ別名はありません。
危険度
2/5 · 低い
Do not touch hydras in the wild as they can sting. Always observe them from a safe distance.
10 mm
Tiny carnivores that ambush and sting small aquatic creatures using their tentacles.
Freshwater
Ambush
20 mm
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