Jun 30, 2011
Sea Cucumber (Holothuroidea)
A remarkable feature the seacucumbers got is the collagen that forms their body wall. This can be loosened and thigtened at will, it can essentially liquify its body and pour itself into small gaps ect. When inside the sea cucumber hooks up all its collagen fibres to make its body firm again.
Some of the seacucumbers got quite an special way to defend itself. When threatened they violently contract their muscles and shoots some of their internal organs out of their anus. The missing body parts are quickly regenerated.