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Evolution & Behaviour

165 articles

165 articles

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Ships with hitchhiking critters connect Antarctica to the rest of the world
Evolution & Behaviour

Ships with hitchhiking critters connect Antarctica to the rest of the world

Ships expose Antarctica to many kinds of human impacts, including invasive species that cannot cross the rough seas of the Southern Ocean without help. To...

·4 min read
Notes from underground: naked mole-rats and vocal dialects
Evolution & Behaviour

Notes from underground: naked mole-rats and vocal dialects

Cooperation relies on shared communication systems, such as language. We can now add one of the planet’s most cooperative rodents, the naked mole-rat, to the...

·4 min read
When it comes to the giant bacterium Achromatium, everything is everywhere
Evolution & Behaviour

When it comes to the giant bacterium Achromatium, everything is everywhere

Unlike typical bacteria, the giant Achromatium contains hundreds of unidentical chromosomes. Achromatium is present globally in different environments. This...

·4 min read
Snake uses its split jaws as a knife and fork
Evolution & Behaviour

Snake uses its split jaws as a knife and fork

Animals with no limbs (like snakes) are expected to have a disadvantage when handling their food. Although most snakes swallow their prey whole, we found that...

·4 min read
The puzzling history of South American mammals
Evolution & Behaviour

The puzzling history of South American mammals

After millions of years of isolation, the emergence of the Isthmus of Panama connected South America with North America, allowing the interchange of two...

·4 min read
How does the bat find the tree? With a “cognitive” map!
Evolution & Behaviour

How does the bat find the tree? With a “cognitive” map!

Animals navigate around their home using a variety of strategies. The most advanced one uses a "cognitive map": having spatial memory of places relative to...

·4 min read
Apes and monkeys understand syntax-like structures
Evolution & Behaviour

Apes and monkeys understand syntax-like structures

We, humans, can combine a limited number of words into an unlimited number of possible sentences using syntax. We tested whether our closest living relatives,...

·4 min read
Equalizing strength among sexes: generalized intersexuality in female moles
Evolution & Behaviour

Equalizing strength among sexes: generalized intersexuality in female moles

Female moles develop as intersexual – they have ovotestes, containing both ovary and testicular tissues. Ovotestes produce testosterone that makes female moles...

·4 min read
Exceptional hearing ability in a hummingbird
Evolution & Behaviour

Exceptional hearing ability in a hummingbird

The Ecuadorian Hillstar sings with the highest pitch among birds. We showed that this hummingbird can hear these vocalizations and use them to court females,...

·3 min read
Tidings from Before the Flood: how Artificial Intelligence Rediscovers Ancient Babylonian Texts
Evolution & Behaviour

Tidings from Before the Flood: how Artificial Intelligence Rediscovers Ancient Babylonian Texts

Texts written in cuneiform, the first writing system in the world, hold much information on the cultures of ancient Mesopotamia, the cradle of civilization....

·4 min read
The crocodile that crossed an ocean
Evolution & Behaviour

The crocodile that crossed an ocean

The study of a forgotten crocodile skull collected in Libya back in 1939 suggests that the extinct Crocodylus checchiai may be the link between the Nile and...

·4 min read
The body-language of the elephant trunk
Evolution & Behaviour

The body-language of the elephant trunk

The elephant trunk functions as a muscular hydrostat: it can achieve elaborate movements without the support of any bone. Elephants have evolved unique...

·4 min read