Killer whales living with bottlenose dolphins demonstrate cross-species vocal learning
From barks to gobbles, the sounds that most animals use to communicate are innate, not learned. However, a few species, including humans, can imitate new sounds and use them in appropriate social contexts. ...
Fossilised bird egg offers clues to Brazil's prehistoric past
Brazilian scientists have discovered a near-intact fossilised bird egg – the country's first – in Sao Paulo State.
Cane toads that move in lines most responsible for their deadly spread
(Phys.org) —How are cane toads taking over Australia with such alarming haste? New research from the University of Sydney offers new insight into the pervasiveness of one of the nation's most reviled pests.
Researchers track fall migratory patterns of insects
To study the nocturnal flight patterns of migrating insects during the fall, researchers at the University of Delaware have been spending their nights on the Newark Farm launching a balloon equipped with ...
Plumpest pumpkin: 2,058-pound gourd sets record
(AP)—A pumpkin weighing 2,058 pounds has taken first prize and set a tournament record at an annual pumpkin-weighing contest in Northern California.
Geckos on Australasia side of Wallace Line found to be growing to twice the size of those in Asia
How female fruit flies know when to say 'yes'
A fundamental question in neurobiology is how animals, including humans, make decisions. A new study publishing in the open access journal PLOS Biology on October 7 reveals how fruit fly females make a very ...
Back off: Female chimps stressed out by competing suitors
Being the center of attention can have its drawbacks. For female chimpanzees, being around too many rowdy males is disadvantageous when foraging for food, an effect that can ultimately interfere with her ...
Around the world in 400,000 years: The journey of the red fox
Imagine attempting to trace your genetic history using only information from your mother's side. That's what scientists studying the evolution of the red fox had been doing for decades.
New theorem determines the age distribution of populations from fruit flies to humans
The initial motivation was to estimate the age structure of a fruit fly population, the result a fundamental theorem that can help determine the age distribution of essentially any group.
Lizards in the Caribbean: How geography influences animal evolution
A new and potentially more revealing way of studying how animal evolution is affected by the geography of climate has been designed by researchers at The University of Nottingham and Harvard University.
52-million-year-old amber preserves 'ant-loving' beetle
Scientists have uncovered the fossil of a 52-million-year old beetle that likely was able to live alongside ants—preying on their eggs and usurping resources—within the comfort of their nest. The fossil, ...
Antifreeze proteins in Antarctic fishes prevent freezing... and melting
Antarctic fishes that manufacture their own "antifreeze" proteins to survive in the icy Southern Ocean also suffer an unfortunate side effect, researchers report: The protein-bound ice crystals that accumulate ...