Vietnam or Thailand ? Vote for the TOP Country of the Week !
Updated: May 21, 2025
In Peripatus we have a strange survivor of these primitive Annelid-Tracheates of many million years ago. The simple nature of its breathing apparatus suggests that the trachere were developed out of glands in the skin; just as the fish, when it came on land, probably developed lungs from its swimming bladders.
Word Of The Day
Others Looking