Climate change is causing tropical species in the ocean to move from the equator towards the poles, while temperate species recede. This mass movement of marine life, termed tropicalization, is leading to a cascade of consequences for ecosystems and biodiversity, and has the potential to impact the global economy.

A golden mole that "swims" in sand has resurfaced in South Africa after 87 years in the wilderness when many specialists feared it had become extinct, researchers have said.

A new case of cattle anthrax has been confirmed in southwest North Dakota's Grant County, bringing the number of cases in the state to 25 this year, according to state agriculture officials.