Institutions
Found 183 articles associated to the institution Hokkaido University.
 
Novel switching valve to receive more semen in a sex-role reversed cave insect
17-October-2018

The female of a sex-role reversed cave insect species Neotrogla has evolved a switching valve to receive more semen during mating, when a penis-like structure in the female anchors in the male “vagina.”

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Becoming promiscuous to ensure reproduction
9-October-2018

Females of a socially monogamous passerine, the Japanese great tit (Parus minor), become more promiscuous after hatchings fail in the first breeding attempt — apparently attempting to ensure successful reproduction.

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Couples showing off: Songbirds are more passionate in front of an audience
4-October-2018

Both sexes of a songbird called the blue-capped cordon-bleu intensify courtship performances that involve singing and dancing in the presence of an audience, especially if it is a member of the opposite sex, an international team of researchers has discovered. [Joint press release by Hokkaido University and Max Planck Institute for Ornithology.]

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Evolution: Genetics doesn’t matter much in forming society
3-October-2018

Genetics isn’t as important as once thought for the evolution of altruistic social behavior in some organisms, a new insight into a decade-long debate.

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New micro-platform reveals cancer cells’ natural behavior
19-September-2018

A new cell culture platform allows researchers to observe never-before-seen behaviors of live cancer cells under the microscope, leading to explanations of long-known cancer characteristics.

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