Green “Leaf Sheep” Sea Slugs (Costasiella kuroshimae), family Costasiellidae, found in coastal waters off of Indonesia, New Guinea and Japan
photograph by Jim & Lynn Photography
Did you know? Some species of sponges are among the oldest and longest-lived animals on Earth! Research has found that certain sponges can live for thousands of years.
There are more than 5,000 species of sponges (phylum Porifera) around the world. They come in many shapes and colors—and they have no true organs or tissues, just reproductive, feeding, and skeleton-building cells. They are hollow, taking water and tiny food particles in through small pores in the body and passing water out through a large central hole, the osculum.
Photo: Nhobgood Nick Hobgood, CC BY-SA 3.0, Wikimedia Commons | Tube sponge (Callyspongia sp.) pictured
#dyk #NaturalHistory #nature #ocean #OceanLife #coral #CoralReef #MarineLife #MarineBiology #animals #AnimalFacts
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small! :)
Victor Nizovtsev
ITS THIS THING TUESDAY
ALTWelcome to Trilobite Tuesday! Have you ever wondered how trilobites are found in the field? Often, as was the case for this 3.1-in- (8-cm-) Thysanopeltis, rock after rock must be cracked by hand and carefully examined. The presence of a thin cross-section of calcite—like the crack still visible running through the middle of this critter’s body—indicates that a complete specimen might be buried within the stone matrix.
