Darren Croft on killer whale matriarchs and the menopause

Darren Croft on killer whale matriarchs and the menopause

Author: BBC Radio 4 August 27, 2024 Duration: 28:24

Darren Croft studies one of the ocean’s most charismatic and spectacular animals – the killer whale. Orca are probably best known for their predatory behaviour: ganging up to catch hapless seals or attack other whales. But for the last fifteen years, Darren Croft’s focus has been on a gentler aspect of killer whale existence: their family and reproductive lives . Killer whales live in multi-generational family groups. Each family is led by an old matriarch, often well into her 80s. The rest of the group are her daughters and sons, and grand-children. Especially intriguing to Darren is that female orca go through something like the menopause - an extremely rare phenomenon in the animal kingdom, only documented in just five species of toothed whales and of course in humans. Halting female reproduction in midlife is an evolutionary mystery, but it is one which Darren Croft argues can be explained by studying killer whales. Darren is Professor of Animal Behaviour at the University of Exeter. He talks to Jim Al-Kalili about his research on killer whales, his previous work revealing sophisticated social behaviour in fish, his life on the farm, and the downsides and upsides of being dyslexic.

Presented by Jim Al-Khalili Produced by Andrew Luck-Baker


Hosted by physicist and author Professor Jim Al-Khalili, The Life Scientific offers a rare and intimate glimpse into the minds shaping our world. Each conversation moves beyond the standard lecture or interview, weaving together personal history with groundbreaking ideas. You’ll hear how childhood curiosity, unexpected setbacks, and moments of sheer luck have steered the careers of some of today's most influential researchers. This BBC Radio 4 podcast treats science not as a remote collection of facts, but as a deeply human endeavor driven by passion, perseverance, and sometimes, serendipity. The discussions delve into the real process of discovery-the late-night frustrations, the collaborative breakthroughs, and the ethical questions that arise from new knowledge. While exploring everything from the smallest particles to the vastness of the cosmos, the core of each episode remains the individual behind the science. Listeners come to understand not just what these scientists know, but who they are and what continues to drive them forward. It’s a series that connects the personal to the universal, making complex fields accessible and profoundly relevant. By focusing on the life as much as the science, this podcast reveals how our future is being built, one question at a time, in labs, field stations, and offices around the globe.
Author: Language: English Episodes: 100

The Life Scientific
Podcast Episodes
Dean Lomax on discovering ichthyosaurs and defying nay-sayers [not-audio_url] [/not-audio_url]

Duration: 28:24
Have you ever been told you aren't good enough to do something, then gone ahead and proved the naysayers wrong by doing it anyway - in glorious, headline-grabbing style? That is the satisfying story of Dr Dean Lomax. Dea…
Helen Hastie on the future of human-robot relations [not-audio_url] [/not-audio_url]

Duration: 28:22
What if robots of the future weren’t just clever machines, performing tasks in isolation, but trusted teammates you could have a chat with? That could respond naturally to conversational cues and even explain their work?…
Seth Berkley on the importance of vaccinating the world [not-audio_url] [/not-audio_url]

Duration: 28:24
Dr Seth Berkley is an epidemiologist and global health leader whose career has been shaped by one central problem: vaccines save lives, but only if people can actually get them.His 40-year career has spanned the global,…
Hiranya Peiris on unravelling the story of the universe [not-audio_url] [/not-audio_url]

Duration: 28:20
Hiranya Peiris is playing a starring role in a movie that promises to tell perhaps the greatest story of all time. However, it’s a movie with a difference – there’s no director and no script. The Legacy Survey of Space a…
Lucy Carpenter on how our oceans are destroying ozone [not-audio_url] [/not-audio_url]

Duration: 28:23
Working on a remote tropical island in the Atlantic might sound like some sort of romantic idyll - but trying to conduct scientific research on a windy, isolated volanic outcrop is no picnic, as Lucy Carpenter can attest…
Jens Juul Holst on the gut hormone discovery behind weight-loss drugs [not-audio_url] [/not-audio_url]

Duration: 28:25
As recently as a few years ago, the idea of a self-administered injection that would deliver proven weight-loss results might have sounded fantastical. Today, these medications are a reality and a global phenomenon; hail…
Jehane Ragai on the science of authenticating artworks [not-audio_url] [/not-audio_url]

Duration: 28:10
Ever heard of the unsuccessful Dutch painter who decided to humiliate his critics by forging Vermeers, which the artworld subsequently dubbed 'masterpieces'? Or the businessman who bought a Marc Chagall painting that he…
Tony Juniper on parrots, princes and environmental protection [not-audio_url] [/not-audio_url]

Duration: 28:31
Tony Juniper is an environmentalist who has worn many hats, over the course of his career.After developing a passion for birds in childhood, his first job saw him working to save endangered parrots - including a successf…