Image of the Day

Male lemurs secrete aldehydes from their wrist glands that may make them more attractive to females during the breeding season.

Nimodipine, a drug used to treat brain hemorrhages, alleviates spasticity in mice after spinal cord injuries.

Most small amphibious mammals have a diminished sense of smell, a quality that likely arose because of a tradeoff with thermoregulation capacities that allowed them to conserve heat in aquatic environments.

The films coating buckeye butterflies’ wing scales vary in thickness, creating a broad spectrum of iridescent colors.  

Researchers discover a fragment of cord between 41,000 and 52,000 years old that points to Neanderthals’ complex cognitive abilities.

A new study finds that the extinct European cave bear’s large sinuses represent a tradeoff between hibernation length and the flexibility of their diets.

An inflatable biosafety laboratory may help meet the global need for testing infrastructure during the COVID-19 pandemic.

Scans of eight fossilized adult and infant Australopithecus afarensis skulls reveal a prolonged period of brain growth during development that may have set the stage for extended childhood learning in later hominins.

Super-resolution imaging identifies abnormalities in the hair-like protrusions on a cell’s surface and may help facilitate earlier detection of primary ciliary dyskinesia.

A newly engineered synthetic blood vessel offers a novel platform for developing drugs that treat high blood pressure.

An analysis of fossilized teeth sheds light on the evolutionary relationships between Pleistocene hominins.

A wildlife camera trap survey of critically endangered West African lions finds they have no preference for parks over trophy-hunting areas, possibly because of poor habitat quality in the no-hunting zones.

A fluorescent image of murine hippocampal cells is the winning microscopy image from more than 400 submissions from 65 countries for Olympus’s 2019 Image of the Year Award.

The newly described Ikaria wariootia was a small, wormlike creature that marked an important evolutionary step between early multicellular organisms and more complex modern animals.

Scientists identify a transcription factor that plays a key role in increased fruit size.

Ten endangered Manning River turtles were saved from flooding in New South Wales, Australia, following devastating fires on the country’s east coast.

A zinc-sensing protein found in fruit fly intestines regulates the insect’s growth and feeding behavior.

At Bessy II, a synchrotron radiation facility in Berlin, scientists use X-rays to study the structure of SARS-CoV-2.

An experimental tissue engineering treatment that addresses damage at both the inner core and outer ring of sheep intervertebral discs improves spinal structure and function.