Do Fish Drink Seawater? Do They Ever Get Thirsty?

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Water is our planet’s most abundant natural resource. It plays an important role, as all living things rely on water to survive. And without water, life as we know it wouldn’t exist.  When humans and animals lack the water they need, they get thirsty. And like hunger, thirst is a need that must be satisfied.  […]

Barreleye Fish: Fish With A Transparent Head

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The oceans on our planet hold such great mysteries within their depths. There’s a whole different world down below, and so many strange yet remarkable sea creatures lurk in the deep. And one of the most otherwordly sea creatures considered by biologists is a fish with a transparent head. Yes, you read it right. A […]

Haikouichthys: The First Known Fish That Lived On Earth

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We think that life began on Earth at least 3.5 to 4 billion years ago. This is because the oldest evidence of life form recorded is a 3.49-billion-year-old microscopic fossil. The remains of the Stromatolites or microbial reefs created by cyanobacteria were found in the Pilbara region of Western Australia. This oldest fossil ever discovered […]