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Anadenanthera colubrina is the one tree species common to nearly all regions of South American seasonally dry tropical forests and woodlands (SDTFs). Its abundant fruits each of which is laterally flat and which bear many lenticular seeds, trunk and main stems with a tuberculate cortex, and extra floral nectaries positioned near the base of the leaf rachis distinguish this species.

Humans

Ancient Andean leaders may have mixed hallucinogen with their beer

A concoction of vilca seeds and fermented alcohol may have provided a mild hallucinogenic experience, enabling Wari leaders in South America to bond with their people

News

2F7DHH7 An elderly woman in a yellow sports jacket practices Nordic walking outdoors on the stadium's rubber treadmill. A sunny sunset. Older women walk with

Health

Strength, balance and mobility are the best predictors of a long life

News

Empty bottles in green container; Shutterstock ID 145222138; purchase_order: 08 Jan 2021 issue; job: 08 Jan 2021 - Feature; client: Photo; other:

Health

What the no-alcohol boom means for our drinking habits and health

Features

Happier and Healthier

Health

Discover wellbeing through a science lens

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Greenpeace Norway activists in kayaks confront Siem Day loading drilling infrastructure for the Cambo oil field on behalf of Siccar Point Energy and Shell Oil, at Randaberg Industries, outside Stavanger, Norway.

Environment

Will paused Cambo oil plans mark the decline of North Sea drilling?

Analysis

Fix the Planet newsletter: The tide is turning for sea power

Environment

Fix the Planet newsletter: The tide is turning for sea power

News

Orcas

Life

Orcas are spreading further into the Arctic Ocean as sea ice melts

News

Risso's dolphin

Life

Risso’s dolphins have invented rapid spin-dive technique for hunting

News

Uranium, a chemical element with a U symbol and an atomic mass equal to 238 u, has an atomic number 92

Technology

Material inspired by blood vessels can extract uranium from seawater

News

2AKEMKH Amazon river dolphin (Inia geoffrensis) Rio Negro, Amazonas, Brazil.

Life

The Amazon's pink river dolphin population is in free fall

The population of botos, river dolphins found in the Brazilian Amazon, is declining due to fishing with gill nets and is predicted to fall by at least 95 per cent in less than 50 years

News

Environment

COP26: New alliance commits to ending oil and gas extraction

News

Life

Baleen whales eat three times more krill than we thought

News

Health

Two people suppressed HIV for years while pausing medication

News

Health

Quick saliva test can reveal cannabis use over the past 12 hours

News