Fossils found in Niger belong to a newly identified Spinosaurus species that had a dramatic skull crest and likely hunted fish by wading, researchers reported.

Microbes play a crucial role in maintaining the levels of many nutrients in our environment, but warming could disrupt their function in certain cycles.

When many types of fish are available, seals stay longer and dive deeper, even in dangerous areas. This shows that food variety can outweigh fear. In safer areas, seals spend less time diving because ...