Category Archives: Other Marine Animals

What is Horseshoe Crab Blood Used For and How Do They Spawn? Meet Edna the Horseshoe Crab!

Hi, I’m Edna, a horseshoe crab. I’m not truly a crab, but an arthropod related to scorpions, spiders and ticks. I’m excited because it is the new moon. It is time for me to mate and lay my eggs in … Continue reading

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10 Fabulous Sea Cucumber Facts

10 Sea Cucumber Facts 1. Sea cucumbers are not a vegetable, but an invertebrate (animal without a backbone). They are like a squishy leather-like terrestrial cucumber with a mouth on one end and an anus on the other. They breathe … Continue reading

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What Is Bioluminescence and Why Do So Many Deep-Sea Animals Have It?

What is bioluminescence? Bio = biological, or life, Lumen = light (unit) Bioluminescence is the biochemical emission of light by living organisms such as deep-sea fishes. It produces the “glow-in-the-dark” look of certain animals such as fireflies and the “fireworks” … Continue reading

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Blue-Green Bacteria (Prochlorococcus) are Most Abundant Photosynthesizing Biomass on Earth

That’s right, a bacterium called Prochlorococcus marinus, is the most plentiful photosynthesizing biomass on Earth. There are a billion billion billion (or trillion trillion) Prochlorococci in all the world’s oceans. It’s not a plant (though it has chlorophyll like them), … Continue reading

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European Eel Life Cycle

Hi, I’m a European eel. I was born in the Sargasso Sea. The Sargasso Sea is located in the North Atlantic Ocean, due east of Bermuda. I use the Earth’s magnetic field to navigate, a sixth sense of sorts. When … Continue reading

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