The size of a fly's eyes and nose reflect both its behaviour during mating and its habitat preferences, according to a new study published today in eLife.
Angel sharks are sharks, but with their peculiarly flat body they rather resemble rays. An international research team led by Faviel A. López-Romero and Jürgen Kriwet of the Institute of Palaeontology has now investigated the origin of this body shape. The results illustrate how these sharks evolved into highly specialised, exclusively bottom-dwelling ambush predators and thus also contribute to a better understanding of their threat from environmental changes. The study is published in the journal Scientific Reports.
A new study led by researchers from King's College London has shown that humans, mice and flies share the same fundamental genetic mechanisms that regulate the formation and function of brain areas involved in attention and movement control.
A half-century of controversy over two popular bird species may have finally come to an end. In one corner: the Bullock's Oriole, found in the western half of North America. In the other corner: the Baltimore Oriole, breeding in the eastern half. Where their ranges meet in the Great Plains, the two mix freely and produce apparently healthy hybrid offspring. But according to scientists from the Cornell Lab of Ornithology, hybridization is a dead end and both parent species will remain separate
A comprehensive study on a group of unique ectoparasitic fungi associated with insects and other arthropods in Belgium and the Netherlands was published in the open-access, peer-reviewed scholarly journal MycoKeys. In their paper, the scientists provide identification details about a total of 140 species, including nine species that represent new country records and two species new to science, with one of them named after the 2020 quarantine period, imposed to curb the COVID-19 pandemic.
The average size of a dingo is increasing, but only in areas where poison-baits are used, a collaborative study led by UNSW Sydney shows.
A collaboration led by the Royal Ontario Museum (ROM) and McMaster University has led to the discovery and diagnosis of an aggressive malignant bone cancer -- an osteosarcoma -- for the first time ever in a dinosaur. No malignant cancers (tumours that can spread throughout the body and have severe health implications) have ever been documented in dinosaurs previously. The paper was published in The Lancet Oncology.
Some prey species can escape from inside a predator after a successful attack. Kobe University ecologist Sugiura Shinji has found that the aquatic beetle Regimbartia attenuata can actively escape from the vent of the frog Pelophylax nigromaculatus via the digestive system. This is the first time that research has documented the active escape of prey from the body of a predator after being eaten.
Dog brains, just as human brains, process speech hierarchically: intonations at lower, word meanings at higher stages, according to a new study by Hungarian researchers. The study reveals exciting speech processing similarities between us and a speechless species.
When we say someone has a quick mind, it may be in part thanks to our expanded cerebellum that distinguishes human brains from those of macaque monkeys, for example. High-res imaging shows the cerebellum is 80% of the area of the cortex, indicating it has grown as human behavior and cognition evolved.