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Science

Essays and videos exploring physics, evolution, cosmology and other frontiers in science
A man in yellow shorts floating on his back in a swimming pool, with dark lane markings and reflections in the water.

essay

History of science

Forwards, not back

Medicine aims to return bodies to the state they were in before illness. But there’s a better way of thinking about health

Kate MacCord & Jane Maienschein

A man and a woman smiling with their hands on the shoulders of a Neanderthal figure with long hair and a beard but in modern clothes.

video

Genetics

Why it took a century to work out that humans interbred with Neanderthals

22 minutes

Abstract art depicting DNA sequencing, with vertical bands of vibrant colours including yellow, red, blue and green, blending into each other with a glossy, reflective texture.

essay

Genetics

We are not machines

Welcome to the new post-genomic biology: a transformative era in need of fresh metaphors to understand how life works

Philip Ball

An early morning view across an old bridge towards the spires of a historic medieval city partially obscured by fog

essay

Home

Return of the descendants

I migrated to my ancestral homeland in a search for identity. It proved to be a humbling experience in (un)belonging

Jessica Buchleitner

Close-up of a person’s hand gently holding the wet snout of a black cow, with a blurred green background.

essay

Evolution

Kinship

Science must become attuned to the subtle conversations that pervade all life, from the primordial to the present

David Waltner-Toews

A double-exposure image of a dancer on stage against a black backdrop, his body is lit and partly shot in motion blur

essay

Genetics

Artists of our own lives

The genome is the starting point for a performance we enact over a lifetime, not a blueprint we’ve got to follow

Richard O Prum

Peach Twig (Prunus Persica) (1918) by Royal Charles Steadman

video

Biology

In 1886, a US agency set out to record new fruit varieties. The results are wondrous

5 minutes

Blue Betta fish with flowing fins swimming in a black background.

essay

Genetics

Evolution without accidents

Despite advances in molecular genetics, too many biologists think that natural selection is driven by random mutations

James A Shapiro

Two elderly women in red dresses and sunglasses standing in front of a tropical mural with birds, flowers, and a full moon.

essay

Personality

The myth of mirrored twins

What do the lives of twins tell us about heritability, selfhood and the age-old debate between nature and nurture?

Gavin Evans

A close-up image of a human embryo at the eight-cell stage, viewed under a microscope with a red and dark background.

essay

Bioethics

Selected before birth

Embryo risk screening could lower the odds of illnesses ranging from depression to diabetes. Can it be ethically done?

Todd Lencz & Shai Carmi

Microscopic image of a green cell adjacent to a larger pink cell on a black background.

essay

Evolution

What on earth is a xenobot?

The more we understand how cells produce shape and form, the more inadequate the idea of a genomic blueprint looks

Philip Ball

Half-submerged view of a vibrant coral reef underwater with a sandy island and a clear blue sky in the background.

essay

Evolution

The web of life

Classic evolutionary theory holds that species separate over time. But it’s fuzzier than that – now we know they also merge

Juli Berwald

Close-up of a barracuda swimming underwater with several smaller fish in the background.

essay

Genetics

An idea with bite

The ‘selfish gene’ persists for the reason all good scientific metaphors do: it remains a sharp tool for clear thinking

J Arvid Ågren

Microscopic image of colourful neural tissue with bright pink, green and blue cells, showing intricate patterns.

essay

Human evolution

Brains in a dish

What pea-sized brain organoids reveal about consciousness, the self and our future as a species

Alysson Muotri

Sets of twins wearing matching outfits and sashes sit in folding chairs in a line on a stage. Some are holding bouquets or wearing plastic crowns.

essay

Genetics

The science of terrible men

The pioneers of social genetics were racists and eugenicists: should we give up on the science they founded altogether?

Kathryn Paige Harden

Photo of a scientist with braided hair examining a sample. She wears orange gloves and looks attentively at the object in a laboratory.

video

Genetics

If trauma can be passed down, could new therapies blunt the transgenerational impact?

9 minutes

Two parents sitting on a sofa with two children in their laps, the girl holds a baby doll, against a teal wall in a cosy living room.

essay

Genetics

The genes we’re dealt

The new field of social genomics can be used by progressives to combat racial inequality or by conservatives to excuse it

Erik Parens

Cubist painting of abstract nude figures and geometric landscapes in muted colours with green trees, houses, and a cloudy sky.

essay

Human evolution

Choose your own birth

Every human is both an animal with a deep evolutionary history and an individual who must bring their existence into being

Ada Jaarsma

A muscular shirtless man with a dogtag necklace lowers his sunglasses, looking at something or someone, while standing next to a car.

idea

Gender

Testosterone is widely, and sometimes wildly, misunderstood

Matthew Gutmann

Abstract digital art showing a striped, oval shape with shades of red connected with a cream-coloured line on a teal background.

video

Human evolution

In the tug-of-war between mother and baby, the placenta is a life-giving referee

4 minutes

A light-coloured axolotl with a smiling expression, surrounded by dark rocks and water in an aquarium.

idea

Biology

Consider the axolotl: our great hope of regeneration?

Scott Sayare

A collage of vintage wedding photos featuring different couples in wedding attire.

video

Mood and emotion

Till genetics do us part – why the success of your marriage is encoded at birth

5 minutes

Painting of a group of elegantly dressed individuals, including children and cherubs, in a lush outdoor setting with trees and hills.

idea

Genetics

Like the emperor’s new clothes, DNA kits are a tailored illusion

George Estreich

Painting of a large dog lying down on a stone ledge with some birds flying in the background and a calm, grey sky.

idea

Animals and humans

Dog breeds are mere Victorian confections, neither pure nor ancient

Michael Worboys