
Almost half a billion years ago Earth was largely inhabited by armored arthropods with segmented bodies and jointed limbs, shelled mollusks, and wobbly unrecognizable fishlike organisms darting about.
Section:
Source: origins
Almost half a billion years ago Earth was largely inhabited by armored arthropods with segmented bodies and jointed limbs, shelled mollusks, and wobbly unrecognizable fishlike organisms darting about.
Source: origins