Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. Corals species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.
Io (2019) Review
To boring to hate Io (2019): 3 out of 10: Pollution renders Earth virtually uninhabitable as the remaining population flees to Jupiter’s Moon Io. One […]