Archive: 07/7/2011

Invigorating plants

One of the key elements of the Green Revolution – when a series of  agricultural initiatives dramatically boosted crop productivity worldwide – was the harnessing of hybrid vigour. This phenomenon ...

Jul 07, 2011
5 / 5 (1) 0

Male black widows look for well-fed mates

(PhysOrg.com) -- According to a new study published in Animal Behaviour, a male black widow spider is able to identify a female spider that has eaten well by simply taking a few steps on the web she spins. ...

Jul 07, 2011 report
4.7 / 5 (3) 2 | with audio podcast

Ancestry of polar bears traced to Ireland

An international team of scientists has discovered that the female ancestor of all living polar bears was a brown bear that lived in the vicinity of present-day Britain and Ireland just prior to the peak of ...

Jul 07, 2011
5 / 5 (3) 5 | with audio podcast