Two male sticklebacks of the same age -- one from a stream (top) and one from a lake (bottom) -- are each highly adapted to their own local environment. According to Bolnick, apart from a dramatic difference in size,...
This is an illustration of what chiral nonlinear spectroscopy reveals: that DNA is surrounded by a chiral water super-structure, forming a 'spine of hydration.' Credit: Poul Petersen, Cornell University Water is Earth's most abundant natural resource, but it's also something of...
While there are a number of studies and reports that suggest a correlation between environmental contaminants, immune disturbances and disease susceptibility in wild dolphins and other marine mammals, scientists and veterinarians need a way to characterize, monitor and evaluate...
A micro-CT scan shows the differences in bone structure between a surface fish and a blind cavefish. Credit: Amanda Powers/UC Imagine living in perpetual darkness in an alien world where you have to find food quickly by touch or starve for...
The skeleton shows a photo of Burial M95-2 from Schela Cladovei (SC-1) attached. Credit: Copyright Clive Bonsall In human history, the transition from hunting and gathering to farming is a significant one. As such, hunter-gatherers and farmers are usually thought about...
After being treated with an inhibitor of electrical synapses, about 25 percent of wild-type (WT) flatworms regenerated into double-headed forms (DH), while 72 percent regenerated as seemingly normal one-headed worms (CRPT). But further analysis showed that the normal-appearing flatworms...
This is an artistic reconstruction of Luskhan itilensis. Credit: Copyright Andrey Atuchin, 2017 A new species of a fossil pliosaur (large predatory marine reptile from the 'age of dinosaur') has been found in Russia and profoundly change how we understand the...
The researchers conducted two experiments to test fence lizards' stress response to non-lethal exposure to fire ants. Credit: Tracy Langkilde and Travis Robbins Lizards living in fire-ant-invaded areas are stressed. However, a team of biologists found that the lizards did not...
Blue whale surface feeding. Credit: © michaelpeak / Fotolia The blue whale, which uses baleen to filter its prey from ocean water and can reach lengths of over 100 feet, is the largest vertebrate animal that has ever lived. On the...
Cowbird moms pay attention to the size of eggs in the nests they choose for egg-laying, a new study finds. Inset: Two cowbird eggs in the nest of a northern cardinal, with two (larger) eggs of its own. Credit: Photo...
A new UT study by Vladimir Dinets shows that some snakes coordinate their hunts to increase their chances of success. He studied the Cuban boa, pictured. Credit: Vladimir Dinets Snakes, although as social as birds and mammals, have long been thought...