logo
episode-header-image
Jul 2025
26m 28s

Tooth and Claw: Harpy Eagles

Bbc World Service
About this episode

Named after a beast from Greek mythology, the harpy eagle is widely considered to be the most powerful bird of prey due to its strong legs and huge talons. With a crown of feathers atop its head, and known for eating monkeys and sloths, this regal-looking raptor dominates the rainforest canopies across much of South and Central America.

Presenter Adam Hart looks into the folklore and cultural importance of these imposing birds, as well as finding out why these apex predators of the treetops are having to increasingly search for ground-dwelling prey such as armadillos. He also hears how harpy eagle researchers were the pioneers for biological applications of GPS in order to study and track these animals in the dense rainforest.

Contributors:

Dr. Helena Aguiar-Silva, biologist and associate research scientist at the National Institute for Amazonian Research and a member of Projeto Harpia Brasil.

Dr. Eduardo Alvarez founder of a non-profit organisation called EarthMatters.org, to concentrate on the study and conservation of harpy eagles and to preserve their rainforest habitat.

Presenter: Professor Adam Hart Producer: Jonathan Blackwell

Image: Harpy eagle and nest with chick Credit: João Marcos Rosa

Up next
Nov 17
Bodies
<p>The London Anatomy Office accepts around 350 human bodies donated for medical research and education annually. You may imagine that these bodies are presevered in chemicals for medical students to study over weeks and months. And some are. But many are used - almost fresh - to ... Show More
26m 28s
Nov 10
The Life Scientific: Kevin Fong
There can't be many people in the world who've saved lives in hospital emergency rooms and also helped care for the wellbeing of astronauts in space – but Kevin Fong’s career has followed a singular path: from astrophysics and trauma medicine, to working with NASA, to becoming an ... Show More
26m 30s
Nov 3
The Life Scientific: Dame Pratibha Gai
Chemical reactions are the backbone of modern society: the energy we use, the medicines we take, our housing materials, even the foods we eat, are created by reacting different substances together. If we zoom in, it’s the atoms within these substances that rearrange themselves to ... Show More
26m 28s
Recommended Episodes
Jul 2025
3D-printed fake wasps help explain bad animal mimicry
In this episode:00:45 Why animals evolve to be imperfect mimicsMany harmless animals mimic dangerous ones to avoid being eaten, but often this fakery is inaccurate. To help explain why evolution sometimes favours imperfect mimicry, a team 3D printed a range of imaginary insects. ... Show More
27m 19s
Feb 2022
Brain Donation, Meat And Human Evolution, Bird Song, Space Station Retirement. Feb 4, 2022, Part 1
<p>Date Set For International Space Station’s Burial At Sea</p> <p>The International Space Station was never going to last forever. And its expiration date had already been moved from 2024 to 2030. But NASA finally released the plan for what happens after the end of United States ... Show More
47m 22s
Jun 2025
Tim Coulson on how predators shape ecosystems and evolution
As a young man, traveling in Africa, Tim Coulson - now Professor of Zoology at the University of Oxford - became seriously ill with malaria and was told a second bout would probably kill him. Aged only 20, this brush with his own mortality led him to promise himself he would writ ... Show More
28m 36s
Nov 2024
Should we bring back extinct animals?
A woolly mammoth by 2028.That’s the bold claim from US company Colossal Biosciences, who say research is under way that will make this possible.But even if we have the technology to bring back a long dead species, should we? We hear the arguments for and against de-extinction.Als ... Show More
28m 14s
Nov 2024
Quels sont les cinq animaux éteints à cause des Hommes ?
<p>De nombreuses espèces animales se sont éteintes en raison des activités humaines au fil des siècles, souvent à cause de la chasse excessive, de la destruction des habitats et de l’introduction d’espèces invasives. Voici cinq exemples marquants d'animaux qui ont disparu en gran ... Show More
2m 47s
Feb 2025
Quantum Birds
<p>Annie McEwen went to a mountain in Pennsylvania to help catch some migratory owls. Then Scott Weidensaul peeled back the owl’s feathery face disc, so that she could look at the back of its eyeball. No owls were harmed in the process, but this brief glimpse into the inner worki ... Show More
34m 44s
Apr 2024
126 E. G. Condé / Steve Gonzalez on Hurricanes, Fiction, and Speculative Ethnography (EF)
In this episode, Elizabeth talks with Steven Gonzalez, anthropologist and author of speculative fiction under the pen name E.G. Condé. They discuss the entanglement of politics, Taíno animism, and weather events in the form of a hurricane named Teddy. Steve describes the suffusio ... Show More
37m 34s
Jun 2024
Standing Tall with Milky Stork Conservation
When you think of carnivorous birds, you probably imagine an eagle or a falcon, but did you know storks are carnivorous too? Hosts Rick and Marco visit the Bird Conservation Center at the San Diego Zoo Safari Park to speak with Senior Wildlife Care Specialist Miranda Estensen. Wh ... Show More
21m 41s
Nov 13
Strigiformology (OWLS) Part 2 with R. J. Gutiérrez
<p>We’re back with Dr. R.J. “Rocky” Gutiérrez to answer listeners’ questions on owls. How much wisdom lies behind those big, immovable eyes? Are owls good or bad omens? What’s their proclivity for snatching hats? Is The Staircase owl theory plausible? Is it ok to hoot back at the ... Show More
1h 11m
Mar 2025
Tori Herridge on ancient dwarf elephants and frozen mammoths
<p>Elephants are the largest living land mammal and today our planet is home to three species: the African bush elephant, the African forest elephant, and the Asian elephant.</p><p>But a hundred thousand years ago, in the chilly depths of the Ice Age, multiple species of elephant ... Show More
28m 39s