Owen Middleton (of SEEN and Bella Vista fame) says “Here’s an interesting article (for SEEN) that involves hunting by echolocation in Harbour Porpoises and touches on convergent evolution:
Dolphins, whales, porpoises are similar to bats in that they detect prey location via emitting different frequencies of clicks (echolocation). It was thought that this involved a narrow acoustic range but this study suggests that this hunting method, in Harbour Porpoises, may be more sophisticated and acoustic beams remain flexible until their prey has been caught – like some bats. Flexible echolocation ranges until prey capture reduces the chance of prey escape. This is a convergent evolutionary hunting method seen in both marine vertebrates and terrestrial bats whereby acoustic flexibility is selected for hunting.
BBC News: http://www.bbc.co.uk/news/science-environment-32043822
eLife: http://elifesciences.org/content/early/2015/03/20/eLife.05651” Thank you Owen!
You love your dog like it’s a baby http://trove.com/a/What-making-puppy-eyes-with-your-dog-says-about-evolution.IUxL3?utm_campaign=hosted&utm_medium=twitter&utm_source=sns
http://www.sciencemag.org/content/348/6232/333.full
http://phenomena.nationalgeographic.com/2015/04/16/through-this-chemical-loop-dogs-win-our-hearts/
UK fish are at risk from warming seas http://www.nature.com/nclimate/journal/vaop/ncurrent/full/nclimate2607.html
Biofuel vs crops http://www.sciencemag.org/content/347/6229/1420.full
Small, feathered dinosaur discovered http://www.nature.com/news/bat-winged-dinosaur-discovery-poses-flight-puzzle-1.17434
http://phenomena.nationalgeographic.com/2015/04/29/chinese-dinosaur-had-bat-like-wings-and-feathers/
P Values http://www.nature.com/news/statistics-p-values-are-just-the-tip-of-the-iceberg-1.17412
Probiotic dosing of captive-bred frogs http://phenomena.nationalgeographic.com/2015/03/18/can-probiotic-bacteria-save-an-endangered-frog/
http://rspb.royalsocietypublishing.org/content/282/1805/20142881
Posted By : Judith Lock