Related topics: hormone

Penis development needs more than just testes and testosterone

Proper development of the fetal penis requires not just testosterone from the testes, but a second hormone produced by other tissues, including the placenta, according to a new study publishing February 14 in the open-access ...

Fish undisturbed by flash photography

Fish experience stress, as do mammals and humans. When under stress, fish release the hormones adrenaline and cortisol. A team of scientists spearheaded by IGB has investigated whether flash photography induces an increase ...

Finally, a breathtaking photo of beluga whale snot

The above photo captures a beluga calf exhaling thousands of tiny droplets of respiratory vapour, which are valuable to science. The droplets—snot, essentially—help researchers like U of M's Justine Hudson measure stress ...

Study: Blowhole spray can provide fast data on whale health

Scientists no longer have to collect poop to get key data on the health of endangered right whales. A new study indicates that under the right conditions, scientist can get real-time hormonal data by collecting the spray ...

page 1 from 9