How wolves change rivers

5 minutes

How the return of just 66 wolves rejuvenated Yellowstone’s entire ecosystem

Yellowstone’s reintroduction of wolves in 1995 is one of the best-known instances of a trophic cascade – a single change in a food chain that transforms an entire ecosystem. The return of the wolves rejuvenated wildlife in the park from top to bottom, even changing the area’s physical geography as native animals and plants reasserted themselves. Narrated by George Monbiot, How Wolves Change Rivers chronicles how Yellowstone’s extraordinary success in rewilding stems from a decrease in invasive and overpopulated species such as coyote and deer thanks to just 66 wolves returning after a 70-year absence from the park.

Video/Childhood & Adolescence

What to make of a Riot Grrrl? A snapshot of feminism and high school in the 1990s

18 minutes

ORIGINAL
Video/Beauty & Aesthetics

Why do audiences thrill to the negative emotions of horror fiction?

6 minutes

Video/Demography & Migration

Amid massive urbanisation and modernisation, rural Japan persists in idiosyncratic corners

30 minutes

Essay/Human Evolution

Sex makes babies

As far as we can tell, no other animal knows this. Did our understanding of baby-making change the course of human history?

Holly Dunsworth & Anne Buchanan

Video/Philosophy of Science

How LSD helped a scientist find beauty in a peculiar and overlooked form of life

6 minutes

Idea/Astronomy

What high-speed astronomy can tell us about the galactic zoo

Christopher Kochanek

Essay/Evolution

Aliens in our midst

The ctenophore’s brain suggests that, if evolution began again, intelligence would re-emerge because nature repeats itself

Douglas Fox

Video/Biology

From egg to the air: 21 days of bee development condensed into one mesmerising minute

1 minutes

Idea/Anthropology

It’s not that your teeth are too big: your jaw is too small

Peter Ungar