Evolusjon

Researchers at the University of California, Berkeley have found ethanol in the nectar of most plant species examined, meaning pollinators like bees and hummingbirds consume alcohol daily. An Anna's hummingbird drinks an amount equivalent to one human alcoholic beverage per day, yet shows no intoxication. The findings, published March 25 in Royal Society Open Science, suggest evolutionary tolerance to low-level ethanol.

21. mars 2026 Rapportert av AI

Scientists have identified a new species of land-dwelling crocodylomorph from 215 million years ago in Gloucester, UK. Named Galahadosuchus jonesi, the reptile had a slender, greyhound-like build for fast movement on land. The discovery honors a schoolteacher who inspired the lead researcher.

Et ettøyd vesen som levde for 600 millioner år siden, er blant menneskehetens eldste forfedre og ga opphav til våre moderne øyne, ifølge en studie fra Lunds universitet. Forskere analyserte lysfølsomme celler i ulike dyregrupper for å forklare hvorfor virveldyrs øyne skiller seg fra andres. Studien ble publisert i tidsskriftet Current Biology.

27. februar 2026 Rapportert av AI

Researchers at MIT have discovered chemical evidence in rocks over 541 million years old suggesting that ancient sea sponges were among Earth's first animals. The findings, published in the Proceedings of the National Academy of Sciences, identify molecular fingerprints matching compounds from modern demosponges. This builds on earlier work and confirms the signals originate from biological sources rather than geological processes.