Latest Entries
Killer whale menopause evolved from mother-daughter conflict
Biology / Evolution

Killer whale menopause evolved from mother-daughter conflict

From Cosmos Magazine, January 13, 2017 (Image: Shawn McCready via Flickr) Menopause is an evolutionary anomaly. Only in three species – humans, orcas and short-finned pilot whales – does female reproduction grind to a halt part-way through life. For orcas (Orcinus orca), a new study published in Current Biology shows that menopause isn’t just a … Continue reading

Environment / Technology

Solar cooling systems take heat out of summer’s hottest days

From The Guardian, December 20, 2016. (Image: allanjder via Flickr) As Australia settles in for another long hot summer, the demand for air-conditioning is set to surge. In fact, with the World Meteorological Organisation stating that 2016 is likely to be the hottest year on record, it’s no surprise an estimated 1.6bn new air conditioners … Continue reading

Is this tiny Australian bird an ecosystem engineer?
Biology / Environment

Is this tiny Australian bird an ecosystem engineer?

(Forty-spotted Pardalote photo by Francesco Veronesi via Flickr) The Forty-spotted Pardalote is tiny – the endangered songbird measures just a palm’s width from head to tail. Yet its daily activities could be having a big impact in the Manna gum canopies where they forage, a recent study suggests. Manna gums (Eucalyptus viminalis), along with a … Continue reading