Tough, flexible tissue that can support the body instead of bone. For example, humans have cartilage in our nose and ears. A 'cartilaginous' animal such as a stingray or shark has cartilage inside instead of bone.
There are two meanings of the word spine: 1. The backbone of a creature that extends from the bottom of their head/skull all the way down their back. And 2. a stiff, pointed, part that sticks out from a creature. E.g. the pointy spines of a fish or kina.
Young Ocean Explorers
P.O. Box 228
Warkworth
, 0941
New Zealand
info@youngoceanexplorers.com
