Are corals an animal?
yup...some of the most primitive animals still alive today are crynoids, which mainly inhabit coral colonies...stoney corals have a calcium skeleton which grows in small increments (mm's per year)...unfortunaley,, the majority of stoney corals are undergoing a rapid extinction, exibiting bleaching (where the live animal dies leaving only the white skeleton behind...many scientists contribute pollution pesticide runoff and global warming...soft coral do not have a calcium skeleton and are mainly classified as polyps or mushroom corals...all corals (especially stoney corals) need nutrient poor clean water to thrive, as well as basically unchanging water temperatures.
No comments:
Post a Comment