Break a sponge in half, and two grow.  More than a colony, less vulnerable than a tissue-based creature.  Human societies could learn a lesson from the lowly sponge. Tube Sponge (Aplysina fistularis).

mad-as-a-marine-biologist: “ Yellow Tube Sponge Aplysina fistularis © moralcoral The few species of demosponge that have entirely soft fibrous skeletons with no hard elements have been used by humans.

Underwater World

Coral reef - This level of variety in the environment benefits many coral reef animals, which, for example, may feed in the sea grass and use the reefs for protection or breeding - Wiki

Turtle Reefs - this tortoise is almost completely camouflaged by the Coral Reef surrounding him.

Green Sea Turtle sitting on a colorful coral reef underwater in the ocean by Soren Egeberg Photography, via Shutterstock

Nature paints the most beautiful masterpieces: vibrantly colorful underwater  Coral reefs with its assortment of fishes

Nature paints the most beautiful masterpieces: vibrantly colorful underwater Coral reefs with its assortment of fishes

CLOWNFISH....also known as anemonefish....often found among SEA ANEMONE (a hollow sea animal that is related to the coral and has a cluster of stinging tentacles around its mouth)....found in warm waters of the Indian and Pacific Oceans including the Red Sea and the Great Barrier Reef of Australia....clownfish & sea anemone work together to each other's benefit

False clown anemonefish (Amphiprion ocellaris) sheltering in anemone Photo by Georgette Douwma on Getty Images

Underwater Photographer Stan Bysshe's Gallery: Contest: Lettuce Sea  Slug

Lettuce Sea Slug from Underwater Photographer Stan Bysshe. Wouldn't this make a fabulous ruffled knit or crochet scarf?

just look at the world around you right here on the ocean floor, such wonderful things surround you! What more are you looking for? Under the sea...

just look at the world around you right here on the ocean floor, such wonderful things surround you! Under the sea.-Sebastian, The Little Mermaid

This post is posted on Thursday 13 June 2013. Currently has 566 notes Tagged as: blue purple marine sea life reef

This post is posted on Thursday 13 June Currently has 566 notes Tagged as: blue purple marine sea life reef coral.

So vibrant! --- Protect aquatic life with the accuracy of analytical chemistry instrument analysis. - LabTestPro.Com --- Image Source: Unknown

La fórmula cornejista para reactivar la economía

So vibrant! --- Protect aquatic life with the accuracy of analytical chemistry instrument analysis.Com --- Image Source: Unknown

Coral zoanthids – Photosynthetic Gorgs. They grow quite fast. Started from about 2" frags and now they are 6-7" with multiple branches

Ocean Stunning pictures of Coral Zoanthids – Photosynthetic Gorgs. They grow quite fast. Started from about frags and now they are with multiple branches

Christmas Tree Featherdusters 1363 | Flickr - Photo Sharing!

Christmas Tree Featherdusters Sabellidae (feather duster worms) are sedentary marine polychaete tube worms

Arrecife de corales

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