'Problematic' Greenland polar bear may be shot

A polar bear in Greenland may be shot dead next time it endangers people after several close encounters, including one where it bit the hand of a documentary team member, authorities said.

Army Corps approves $778M plan to block Asian carp advance

The head of the Army Corps of Engineers has sent Congress a $778 million plan to fortify an Illinois waterway with noisemakers, electric cables and other devices in the hope that they will prevent Asian carp from reaching ...

Chemical warfare of stealthy silverfish

A co-evolutionary arms race exists between social insects and their parasites. Army ants (Leptogenys distinguenda) share their nests with several parasites such as beetles, snails and spiders. They also share their food with ...

Deep history of coconuts decoded

The coconut (the fruit of the palm Cocos nucifera) is the Swiss Army knife of the plant kingdom; in one neat package it provides a high-calorie food, potable water, fiber that can be spun into rope, and a hard shell that ...

Climate change threatens Hadrian's Wall treasures in England

Nineteen hundred years after it was built to keep out barbarian hordes, archaeologists at Hadrian's Wall in northern England are facing a new enemy—climate change, which threatens its vast treasure trove of Roman artefacts.

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