Ocean holds 90% of the total living space on earth & these marine species are filled with wonders and surprises So here are 10 astonishing facts about marine animals that you probably don't know yet

While eating tiny particles like algae & minute aquatic animals, sea cucumbers also ingest sand & after digestion, they poop the clean sand out.

Sea cucumbers are the ocean's vacuum cleaners

Their venom is one of the most vicious & is fatal to humans. It has 13 venom sacks on its spine. They can attack their prey in just 0.015 seconds

Stonefish is one of the most dangerous sea animals

Dolphins are one of the most intelligent creatures. They use the nerve toxin released by a certain kind of pufferfish to produce a narcotic effect.

Dolphins enjoy getting high

Sea horses and their close relatives, sea dragons, are the only species in which males can get pregnant, give birth, and look after the young ones.

Male seahorses get pregnant and give birth

Coral reefs are the most diverse of all marine ecosystems. One-quarter of all marine species depend on them for food and shelter

Coral reefs contain one-fourth of the world's marine species

It means to have both male & female characteristics. They change their sex to mate with whatever individual of their species they encounter.

About 2% of all bony fish are hermaphrodites

Mudskippers are the only fish that can swim in the water and wriggle on land. They spend up to three-quarters of their life being on land.

Mudskippers are the most land adapted of fishes

Fishes sleep or rest, but sharks don't have a mechanism to breathe when stationary. So they constantly swim even while they are asleep.

Sharks swim forever

Octopus has no bones. Their arms and body can perform all kinds of deformation and capture more than 16000 arm movements.

Octopuses are the most flexible creature

The ocean will never cease to amaze us. You can find an endless list of amazing facts about marine animals. These were just Ten of them, cherry picked for you!