The title quotation, “Bet you didn’t know sponges are animals” is from Dr. Jonathan Bird, on his studies of living sea sponges.
Sponges live at the bottom of the ocean attached to the surface – never moving.
Sponges look like plants, but are multi-cellular animals.
Sponges are found in the Arctic, Antarctic oceans and the tropics on many coral reefs. These ancient animals have been around for 1/2 billion years.
The most common is the barrel sponge, some of which can grow larger than a person.
According to Jonathan these sponges are “not as cool as sharks, but still fascinating animals.”
youtube video “Jonathan Bird’s Blue World: Sponges!” published on Mar 11, 2014
A sponge might not look like much, but these simple animals with no brain or ability to move have lived on Earth for hundreds of millions of years. They can hunt prey and spawn, and Jonathan demonstrates how in this fascinating segment about the biology of sponges!
There are more than 14,000 videos and webisodes on Jonathan Bird’s Blue World’s site and Youtube – all entertaining, amazing and thrilling!