News tagged with biological activity

What causes hybrid vigor?

Plant scientists at the John Innes Centre have provided a new solution to an old debate on why species hybrids can be more vigourous than their parents. In a study to be published online next week in the online open access ...

Jul 20, 2010 3.7 / 5 (3) 0

How cobras form hood flares

(PhysOrg.com) -- Cobras, and several other groups of unrelated snakes, form a menacing hood flare by expanding the sides of their necks as part of a defensive display. Now scientists in the US have identified ...

Apr 20, 2010 4.2 / 5 (9) 0 | with audio podcast report