Male chimpanzees choose their allies carefully
Study finds male chimpanzees may increase their chances of siring offspring by recognizing the importance of third-party relationships.
Bigger fish to fry: Egg position affects size and behaviour of young trout
(Phys.org)—Researchers at the University of Glasgow have discovered the behaviour and metabolism of young trout is affected by where the egg they hatched from rested in the ovaries of their mother.
Are elder siblings helpers or competitors?
Having elder siblings decreases mortality risk in childhood, but same-sex elder siblings are associated with lower marriage rates and fewer children for their younger siblings in adulthood, according to the ...
Nanoparticles: A greater danger to the environment than previously thought
Nanoparticles are more harmful to small animals than tests have indicated to date. This has been shown in a new study of the University of Koblenz-Landau. Thus, the offspring of water fleas (Daphnia magna) ...
Twitter principles of social networking increase family success in nesting birds
New research carried out by scientists at Universities in Exeter, France and Switzerland reveals for the first time the importance of social networking in producing a successful family.
Monk parakeets: Immigrants to New York via Argentina
They appear as invaders, taking over a neighborhood and erecting tall dwellings seemingly overnight. Offspring and relatives soon follow, and their ensuing racket is not to be spoken of in polite company.
Single spider dads caring for eggs suffer no disadvantages despite parenting costs
Single fatherhood is a challenge many arachnids undertake, guarding eggs laid by females despite the costs to their own health and mating benefits, but the news may not be all bad for these dads.
Babies learn mum's unique odour
Researchers show for the first time that a mammal begins to suckle its mother's milk through a learned response built on learning her unique combination of smells. When it is born, the newborn is exposed to the smell of its ...
Migratory moths profit from their journey
It isn't only birds that move south as autumn approaches. Some insects also live their lives on the same principle. A new study of migratory insects has just been published that shows that a considerably higher number of ...
Research team finds mollusk changes gender as it ages
The birdy smell of a compatible partner
New evidence shows that birds may choose their mate with the help of smell. They prefer a dissimilar mate because this gives their young a more efficient immune system. This has been shown in a new study by researchers from ...
Traumatic mating may offer fitness benefits for female sea slugs
Female sea slugs mate more frequently than required to produce offspring, despite the highly traumatic and biologically costly nature of their copulation, as reported Aug. 22 in the open access journal PLOS ON ...
Multiple husbands serve as child support and life insurance in some cultures: researcher
(Phys.org) -- Marrying multiple husbands at the same time, or polyandry, creates a safety net for women in some cultures, according to a recent study by a University of Missouri researcher. Extra husbands ...
Mother knows best: finches choose chicks' gender
Female parrot finches can match their offspring's gender to prevailing living conditions, producing more sons in lean times, scientists in Australia said Wednesday.