Tag: extinction

Mass Extinctions Happen Every 27 Million Years

Scientists have new evidence that Earth’s many periodic mass extinctions follow a cycle of about 27 million years, connecting the five major mass extinctions with more minor ones occurring throughout Earth’s life-fostering timespan. The artificial intelligence analysis could also shift how evolutionary scientists think about the aftermath of mass […]

Jasper National Park says one caribou herd gone, two others on the brink of local extinction

Caribou populations in Jasper National Park are in deep trouble.  Of three southern mountain woodland caribou herds managed by Parks Canada, one — the Maligne herd — is now considered extirpated, or  locally extinct, while the other two are dangerously small, according to the Jasper National Park’s Species at Risk report.  Worse, neither […]