Logan is a name with Irish origins. The meaning of the name Logan is from the hollow. Common nicknames for Logan include Loag and Lo. Famous Loganâs include athletes Logan Bailly, Logan Coutre, Logan Kensing, and Logan Mankins.
During the Cambrian explosion, the atmospheric oxygen levels increased by up to 10 percent, and prior to that time the living creatures roaming the Earth were typically small, simple and often single-celled.
The Cambrian explosion is supposedly a time in Earth's history about 570 million years ago when life evolved extremely quickly from single-celled organisms to complex plants a â¦ nd animals.he Cambrian explosion is supposedly a time in Earth's history about 570 million years ago when life evolved extremely quickly from single-celled organisms to complex plants a â¦ nd animals.