Australia was first settled by between 1,000 and 3,000 humans around 50,000 years ago, but the population crashed during the Ice Age before recovering to a peak of some 1.2 million people around five centuries ...

Other Sciences - Archaeology & Fossils

Apr 23, 2013 4.8 / 5 (15) 3

Cooperative behaviour is widely observed in nature, but there remains the possibility that so-called 'cheaters' can exploit the system, taking without giving, with uncertain consequences for the social unit ...

Biology - Evolution

Apr 30, 2013 4.1 / 5 (16) 70 |

(Phys.org) —Researchers in Britain have announced the development of a new strain of wheat that early reports suggest produce 30 percent greater yields than those currently in use.

Biology - Biotechnology

May 14, 2013 5 / 5 (9) 0 |

The large-scale production of edible insects is unavoidable in order to continue feeding the ever-increasing global population and providing them with enough animal protein. Insect farming can be compared ...

Biology - Ecology

May 10, 2013 4.6 / 5 (9) 3 |

Poaching on an "industrial" scale has slashed the elephant population in the countries of central Africa by nearly two-thirds, a group of international non-governmental organisations (NGOs) said on Friday.

Biology - Ecology

Apr 26, 2013 3.8 / 5 (6) 0

(Phys.org) —Geographic information systems – once limited to the domain of physical geographers – are emerging as a promising tool to study the past, as researchers are discovering for medieval history.

Other Sciences - Other

May 10, 2013 5 / 5 (4) 0

(Phys.org) —Devastating at the time, the major floods of 2011 have since brought a vital benefit by recharging Australia's depleted reserves of underground water.

Space & Earth - Environment

May 14, 2013 5 / 5 (4) 0

Our most pressing environmental challenge is not how many people the planet can support, but rather how many cellphone-toting, satellite-TV-watching, gas-guzzler driving members of the middle class it can ...

Technology - Energy & Green Tech

Apr 23, 2013 2.7 / 5 (7) 0

Millions of birds that stop at coastal wetlands during annual migrations could die as rising sea levels and land reclamation wipe out their feeding grounds, researchers warned Monday.

Space & Earth - Environment

May 06, 2013 4 / 5 (4) 1

Just as humans can follow complex social situations in deciding who to befriend or to abandon, it turns out that animals use the same level of sophistication in judging social configurations, according to ...

Biology - Plants & Animals

Apr 22, 2013 3.8 / 5 (4) 1 |

The European Commission received the go-ahead Monday to slap a two-year ban across the European Union on the use of pesticides blamed for a sharp decline in bee populations, an EU diplomat said.

Biology - Ecology

Apr 29, 2013 5 / 5 (3) 1

New discoveries of the way plants transport important substances across their biological membranes to resist toxic metals and pests, increase salt and drought tolerance, control water loss and store sugar ...

Biology - Biotechnology

May 01, 2013 5 / 5 (3) 0 |

(Phys.org) —Seagrass along Moreton Bay will drastically decline as sea levels rise, a University of Queensland study has found. The study, published in international journal Global Change Biology this week, reveals that u ...

Space & Earth - Environment

May 15, 2013 5 / 5 (3) 0

Conventional methods of agriculture and cattle-breeding cannot feed the world population. They are not sustainable, pollute the environment, are responsible for reducing biodiversity and have a damaging effect ...

Space & Earth - Environment

May 16, 2013 5 / 5 (3) 1

(Phys.org) —One of the biggest threats facing amphibian species is the disease chytridiomycosis, which is caused by a fungus known as Batrachochytrium dendrobatidis (Bd). An understanding of the evolut ...

Biology - Cell & Microbiology

May 07, 2013 4.7 / 5 (3) 0 |