科学与环境

Adult fossil strengthens evidence for Homo erectus in southern Africa 2 million years ago

来源: Phys.org - latest science and technology news stories · 发布于

Adult fossil strengthens evidence for Homo erectus in southern Africa 2 million years ago
来源: Phys.org - latest science and technology news stories

La Trobe archaeologists have described 18 new hominin fossils, including a second Homo erectus skull fragment that confirms the species first appeared in southern Africa 2.0 million years ago—200,000 years earlier than traditionally thought.

La Trobe archaeologists have described 18 new hominin fossils, including a second Homo erectus skull fragment that confirms the species first appeared in southern Africa 2.0 million years ago—200,000 years earlier than traditionally thought.

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Tennessee halts plan to execute woman for first time in 200 years
国际新闻

Tennessee halts plan to execute woman for first time in 200 years

State governor and supreme court earlier refused calls for clemency for Christa Pike, who was convicted of murder Tennessee ’s first execution of a woman in 200 years was halted by a court on Wednesday morning an hour before it was set to take place . The state governor and the s

World news | The Guardian ·

Mysterious oarfish's fins inspire large underwater robot design
科学与环境

Mysterious oarfish's fins inspire large underwater robot design

When designing a large underwater robot that could swim silently to avoid startling sea creatures, roboticist Rob Shepherd considered the unusual swimming system of oarfish, the meters-long fish whose ribbon-like dorsal fin moves in waves to propel its body.

Phys.org - latest science and technology news stories ·

How sea squirts perceive underwater noise
科学与环境

How sea squirts perceive underwater noise

Shipping, construction work and other human activities are altering the acoustic conditions in our planet's seas. Sound pressure is often examined to determine the effects that this underwater noise has on marine organisms. However, these observations may not be thorough enough f

Phys.org - latest science and technology news stories ·