Projections of our future under climate change paint a picture of extreme weather and acidified oceans, a world many of today’s animals — including humans — may struggle, or fail, to survive. Yet ...

This one-ton turtle once ruled South America’s rivers — until a changing planet proved too much for even the largest ...

Reliable predictions of how the Earth's climate will respond as atmospheric carbon dioxide levels increase are based on climate models. These models, in turn, are based on data from past geological ...

The giant anaconda, one of the largest snakes in the world, has a fascinating history that dates back over 12 million years. Recent fossil evidence from Venezuela reveals that these magnificent ...

This is a preview. Log in through your library . Abstract Extant apes (Primates: Hominoidea) are the relics of a group that was much more diverse in the past. They originated in Africa around the ...

1. Grasses using the C₄ photosynthetic pathway dominate today's savanna ecosystems and account for ∼20% of terrestrial carbon fixation. However, this dominant status was reached only recently, during ...