Related topics: women

New findings clarify thyroid's role in mammalian seasonal changes

Researchers now have a better understanding of the role that thyroid hormones, the tissues that produce them, and the biochemical pathways on which they act have in driving seasonal reproduction in some mammals, and how this ...

Disregarded plant molecule actually a treasure

The best natural chemists out there are not scientists—they're plants. Plants have continued to evolve a rich palette of small natural chemicals and receptors since they began to inhabit land roughly 450 million years ago.

Contaminants also a threat to polar bears

The polar bear (Ursus maritimus), one of the largest carnivorous mammals on Earth, is vulnerable to a series of dangers. An international team has established a guide to evaluate the condition of its health, and although ...

DC zoo: Panda behavior hints at possible pregnancy

The Smithsonian's National Zoo says its female giant panda is showing behavioral changes and is focused on building her nest as animal keepers watch for a possible pregnancy.

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