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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

Have we got the science of obesity back to front?

Health

Have we got the science of obesity back to front?

Comment

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

How shifting your expectations about food can help you lose weight

Health

How shifting your expectations about food can help you lose weight

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

Women at the gym

Health

Paying people to return to the gym is best way to incentivise exercise

News

Orcas

Life

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

Orcas – also known as killer whales – used to be unusual visitors to the Arctic Ocean off Alaska, but they are becoming more common there, which might be bad news for local ecosystems

News

Life

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

News

Technology

Material inspired by blood vessels can extract uranium from seawater

News

Life

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

News

Environment

COP26: New alliance commits to ending oil and gas extraction

News