As few as 7% of male humpback whales in the south Pacific Ocean sire offspring, according to a new study. Photo from Amy Humphries, UnSplash Most male humpback whales in a Pacific Ocean population do ...
Poop samples are an effective, non-invasive tool for monitoring gray whale reproduction, stress and other physiological responses, a new study from Oregon State University shows. Researchers from ...
USING biological methods of assay, several authors have reported gestogen activity in extracts of whale corpora lutea 1–4. Prelog and Meister 5 were the first to isolate progesterone from this source ...
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