While common cuckoos mimic their host's eggs, new research has revealed that a group of parasitic finch species in Africa have evolved to mimic their host's chicks - and with astonishing accuracy.
How do animals produce and perceive biological information in sounds? To what extent does the acoustic structure and its associated meaning change during evolution? An international team led by the University of Zurich and the University of Saint-Etienne reconstructed the evo-lutionary history of an animal communication system, focusing on drumming signals of woodpeckers.
Brazilian researchers discover that caecilians, limbless amphibians resembling worms or snakes that emerged some 150 million years before the latter, can probably inject venom into their prey while biting.
Manatees don't live year-round in Texas, but these gentle sea cows are known to occasionally visit, swimming in for a 'summer vacation' and returning to warmer waters for the winter. New research has found fossil evidence for manatees along the Texas coast dating back to the most recent ice age. The discovery raises questions about whether manatees have been visiting for thousands of years, or if ice age manatees once called Texas home.
New brain research shows that writing by hand helps children learn more and remember better. At the same time, schools are going more and more digital, and a European survey shows that Norwegian children spend the most time online of 19 countries in the EU.
Repeating a study conducted in 1914, scientists from the University of Plymouth have shown that species may be able to evolve and adapt to rapid climate change.
A team of researchers, led by the University of Bristol, has revealed our most ancient ancestors were ecologically diverse, despite lacking jaws and paired fins.
Pteropods, or "wing-footed" sea snails and slugs, may be more resilient to acidic oceans than previously thought, scientists report. By digging into their evolutionary history, the research team found that pteropods are much older than expected and survived past crises when the oceans became warmer and more acidic. Their findings are a surprising turn of events, as these beautiful and enigmatic marine creatures are currently one of the most adversely affected by ocean acidification.
European wildcats, thought to be extinct 50 years ago in the Jura mountains, have since recolonised part of their former territory. This resurgence in an area occupied by domestic cats has gone hand-in-hand with genetic crosses between the two species. A team of biologists from the University of Geneva modelled the interactions between the two species and predict that hybridisation will entail the irreversible genetic replacement of wildcats.
University of Maryland scientists discovered mosquitos are missing a gene that's critical for survival in other insects. Alys Jarvela noticed the missing gene and went on the hunt to find out how mosquitos survive without it. She identified the first example of nature swapping out closely related genes, a phenomenon that poses caveats for studies using model organisms as proxies for other species. The research was published September 30, 2020, in Communications Biology.