Environmental sciences

Over 150 scientists from 26 countries combined movement data from nearly 2,000 sharks tracked with satellite tags. Using this tracking information, researchers identified areas of the ocean that were important for multiple species, shark ‘hot spots’, that were located in ocean frontal zones, boundaries in the sea between different water masses that are highly productive and food-rich.

Some 18 million years ago, a tiny monkey weighing little more than a baseball lived in the Amazon rainforest, the smallest fossil monkey known worldwide. The finding is based on a single tooth, twice the size of a pinhead, which scientists recently uncovered in a river bank in southeastern Peru. The specimen helps bridge a 15-million-year gap in the fossil record for New World monkeys.