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Tag: "rearing" at biology news

Update on census of world's most endangered cat -- Female Amur leopard found dead

...ven female Amur leopards left in the wild and four rearing cubs. Now we’ve lost a mature, reproductive leopardess and her potential cubs in a senseless killing. This is the third leopard killed within this area over the last five years and underscores the desperate need for a unified protected area with nati...

New insights into autoimmunity and depression

...ter to evaluate escape-oriented behaviors, such as rearing and jumping; rotarod and grip strength tests to gauge motor function; a staircase test; a swim T-maze test to assess cognitive function; and a passive avoidance test to measure the ability of mice to remember a foot shock delivered 24-hours earlier. ...

Why do some queen bees eat their worker bee's eggs?

...ltiple mating by the queen correlated with reduced rearing of workers' sons or greater worker reproductive policing. Were the textbooks wrong" A new study appearing in the current issue of The American Naturalist strongly supports Hamilton's original theory. Tom Wenseleers and Francis Ratnieks (University...

Designer babies - what would you do for a 'healthy' baby?

...IQ. Women interpret certain interventions in child rearing as "design acts" more readily than men. People over 50 interpret certain interventions as "design acts" more readily than people under 25. Because of "parental uncertainty" - the idea than women know for certain if a child is their's whereas men do n...

Origen publishes in Nature a robust and versatile method for creating transgenic chickens

...s of chickens, and the existing infrastructure for rearing chickens and processing eggs means that therapeutic proteins can now be produced efficiently and economically in the eggs of chickens." Origen scientists first demonstrated the potential for the production of human protein therapeutics in chicken eg...

Wild meerkats school their young

...der than 90 days) and parents of both sexes aid in rearing the young. Pups (meerkats younger than 90 days of age) are initially incapable of finding their own prey and therefore rely on provisions from other members of the group by responding to their begging calls for food. Meerkats typically feed on a...

Over-use of antibiotics in fish-for-food industry encourages bacterial resistance and disease

The heavy use of antibiotics in the rearing of fish could be detrimental to the health of the ... effort to curb the over-use of antibiotics in the rearing of finfish is essential in preventing these detrimental effects to fish, animal and human health. ...

Even fish don't swim well when they're young!

...rvae the most trouble, then it is easier to adjust rearing schemes in aquaculture and to lend a hand to endangered species", she says. ...

Genetic and environmental influences on alcohol consumption among rhesus monkeys

...le extended pedigree, and received identical early rearing backgrounds and subsequent treatments. Alcohol co...orenz and his colleagues had discovered that early rearing experiences (mother- versus peer-reared) during the first several months of life among infant rhesus...

Sponges as drugs

...le de Voogd has investigated the possibilities for rearing sea sponges in Indonesia. Some of these sponges co...st in alternative methods of exploitation, such as rearing sponges. For her research, De Voogd described three new species of sponges and examined the interac...

Spider Venom Could Yield Eco-Friendly Insecticides

...om for King's research. The spider "cooperates" by rearing up in a fighting stance when provoked, making it relatively easy for researchers to aspirate venom directly from its fangs. Since Australian funnel-web spiders can live for more than five years in captivity, a small group of these spiders yields plen...

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