'Oldest' Gondwana land creature discovered

A 350-million-year-old fossilised scorpion discovered in South Africa is the oldest known land animal to have lived on Gondwana, part of Earth's former supercontinent, a university said Monday.

Mass extinction event from South Africa's Karoo

An international team led by researchers from the Evolutionary Studies Institute (ESI) at the University of the Witwatersrand, Johannesburg, has obtained an age from rocks of the Great Karoo that shed light on the timing ...

Study traces evolution of acoustic communication

Imagine taking a hike through a forest or a stroll through a zoo and not a sound fills the air, other than the occasional chirp from a cricket. No birds singing, no tigers roaring, no monkeys chattering, and no human voices, ...

Earliest animals lived in a lake environment, research shows

Evidence for life on Earth stretches back billions of years, with simple single-celled organisms like bacteria dominating the record. When multi-celled animal life appeared on the planet after 3 billion years of single cell ...

Report casts world's rivers in 'crisis state'

(PhysOrg.com) -- The world's rivers, the single largest renewable water resource for humans and a crucible of aquatic biodiversity, are in a crisis of ominous proportions, according to a new global analysis.

Lungfish provides insight to life on land

A study into the muscle development of several different fish has given insights into the genetic leap that set the scene for the evolution of hind legs in terrestrial animals. This innovation gave rise to the tetrapods—four-legged ...

Wolf reintroduction proposed in Scottish Highland test case

Researchers are proposing in a new report that a major experiment be conducted to reintroduce wolves to a test site in the Scottish Highlands, to help control the populations and behavior of red deer that in the past 250 ...

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