A new family of caecilians, the most enigmatic branch of the amphibians, has been discovered in northeastern India.

Vast trails of seven-million-year-old fossilised footprints reveal the "social structure" of prehistoric elephants, say scientists.

Scientists tag Humboldt squid as they dive through very low-oxygen waters off the coast of California.

New oil finds off the coasts of Liberia and Sierra Leone raise hopes for rapid growth in the countries, still recovering from civil wars.

The government must take "more seriously" the threat of a nuclear weapon being exploded in space by a rogue state, MPs warn.

The illegal use of Global Positioning System (GPS) jammers in the UK is highlighted in a new study.

The Irish hare is one of a number of native species facing extinction if action is not taken to control the invasion of foreign mammals in Ireland, according to new research.

A year on, modellers continue to provide daily forecasts of the likely spread of floating debris washed out into the Pacific by the Japanese Tohoku megatsunami.