Hundreds of endangered dead sea turtles have been found floating off El Salvador's Pacific coast under mysterious circumstances, with authorities unable to determine what caused their demise.

A big emphasis in the last few years has been updating and adding to the list of species known to occur in the Yukon. This past year, a whopping 1,973 species of plants, insects and animals have been added.

"A decade after the “Save the Rainforest” movement captured the world’s imagination, Cargill and other food giants are pushing deeper into the wilderness."

A salmon troller saw a leatherback turtle in the summer of 2015.

Last year, 2014, was the hottest year ever recorded on Earth. Unlike other worldwide problems from which Canadians might feel relatively safe and isolated, but Canada is actually ground zero of global climate.

Authorities in Uruguay say they have found about 600 dead penguins washed up on the Atlantic coast since Saturday. Experts are trying to determine what has killed the sea birds.