"Ladies choice" reigns in the greater sac-winged bat

Females of the greater sac-winged bat select their mating partner by smell and unerringly choose a male which differs from them the most in genetic terms. Females with more variants of olfactory receptors of the TAAR-group ...

Immune system study could help conserve endangered species

(Phys.org) —A study by University of Georgia ecologists has found that diversity in mammal immune system genes may have more to do with the opportunity to choose a mate than with exposure to parasites.

Mystery of Tasmanian devil tumour deepens - for now

(Phys.org) -- The degree of genetic difference to a tumor is not a factor in Tasmanian devils contracting the facial tumor disease, according to research led by the University of Sydney.

Mapping immune genes in salmon

Morten F. Lukacs' doctoral research at The Norwegian School of Veterinary Science has identified and mapped a group of immune genes that are the key to warding off infectious agents such as viruses and bacteria in salmon. ...

Researchers find genes that help frogs resist fungus

(PhysOrg.com) -- For several decades, the fungal pathogen Batrachochytrium dendrobatidis (Bd) has been decimating frogs, yet some populations and species have been able to resist the fatal disease, called chytridiomycosis.

The spice of life: Variety is also good for hares

Since 1871, when Charles Darwin wrote The Descent of Man, it has been widely accepted that "Variability is the necessary basis for the action of selection." Variability is associated with the ability to adapt, which is clearly ...

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