Hunger guides mountain lions' actions to enter residential areas

http://ift.tt/eA8V8J In a new study, researchers found that while big cats like mountain lions are generally fearful of and avoid humans, hunger can dampen that fear.

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Bone marrow edema in lower spine is common in young athletes

http://ift.tt/eA8V8J New research indicates that young recreational and elite athletes commonly accumulate excess fluid in the bone marrow around the joint that connects the spine with the pelvis.

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Optometrist investigates changes in eye structure in astronauts

http://ift.tt/eA8V8J An optometrist studies the vision of returning International Space Station astronauts and demonstrates a structural change to their eyes.

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Men and women have opposite genetic alterations in depression

http://ift.tt/eA8V8J Men and women with major depressive disorder (MDD) have opposite changes in the expression of the same genes, according to a new postmortem brain study. The findings indicate distinct pathology, and suggest that men and women may need different types of treatment for depression.

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Infected 'zombie ants' face no discrimination from nest mates

http://ift.tt/eA8V8J Carpenter ants infected with a specialized parasitic fungus are not subjected to aggression or isolation from their nest mates, and they continue to share in the colony's food resources until they leave the nest for the last time to die, according to a new study.

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Lab surprised to find its drug-delivery system can help even without drugs

http://ift.tt/eA8V8J A synthetic, injectable hydrogel developed to deliver drugs and encourage tissue growth turns out to have therapeutic properties all its own.

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Breeding trouble: Meta-analysis identifies fishy issues with captive stocks

http://ift.tt/eA8V8J A meta-analysis has found patterns that may be jeopardizing the long-term success of worldwide animal breeding programs, which increasingly act as an insurance against extinction in conservation, and for food security. Captive-born animals had, on average, almost half the odds of reproductive success compared to their wild-born counterparts in captivity; in aquaculture, the effects were particularly pronounced. The scientists were surprised by how universal the patterns were across the animal kingdom.

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