A sense of time
Does a second feel the same for a fly, a bird, or a swordfish, as it does for me? Geoff Marsh drills into the science of time perception within and between species.
Our senses create the world we experience. But do animals have a ‘sense’ of time, and does that differ between species, or between us and other animals?
We know that animal senses reveal a wealth of information that humans can't access. Birds can see in ultra violet, and some fish can 'feel' electricity. So perhaps their sense of time is similar.
If you've ever tried to swat flies, you'll know that they seem to have super-powered reactions that let them escape before you can blink. Presenter Geoff Marsh asks whether flies have some sort of super-power to see the world in slow motion. Are they watching your hand come down at what might appear a leisurely pace?
Science reveals a window into the minds of different species and their temporal perceptions. Some birds have such fast vision that they can see and react to movement at twice the speed you can, and our vision works at more than six times the speed of one species of deep sea fish. This programme delves into each moment of experience to ask 'what is time, biologically?' When birds have to dodge through forests and catch flies on the wing, or when flies have to avoid those birds, it would seem that a faster temporal resolution would be a huge advantage.
Geoff meets physicist Carlo Rovelli and asks him to jump outside of physics to answer questions on biology and philosophy. Geoff explores the mind of a bat with Professor Yossi Yovel in Israel, and dissects birdsong at super slow speeds with ´óÏó´«Ã½ wildlife sound recordist, Chris Watson. Getting deep into the minds of animals he questions whether our seconds feel like swordfish seconds, or a beetles' or birds' or bats..?
Presenter: Geoff Marsh
Producer: Rory Galloway
Picture: Violaceous Euphonia (Euphonia violacea) male flying from branch, Itanhaem, Brazil
Credit: Getty images
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What might birdsong sound like in bird-time?
Duration: 02:04
Broadcasts
- Mon 6 May 2019 19:32GMT´óÏó´«Ã½ World Service except South Asia
- Tue 7 May 2019 04:32GMT´óÏó´«Ã½ World Service Online, UK DAB/Freeview, News Internet & Europe and the Middle East only
- Tue 7 May 2019 05:32GMT´óÏó´«Ã½ World Service Australasia, Americas and the Caribbean & South Asia only
- Tue 7 May 2019 06:32GMT´óÏó´«Ã½ World Service East and Southern Africa & East Asia only
- Tue 7 May 2019 10:32GMT´óÏó´«Ã½ World Service West and Central Africa
- Tue 7 May 2019 13:32GMT´óÏó´«Ã½ World Service Australasia
- Tue 7 May 2019 17:32GMT´óÏó´«Ã½ World Service South Asia
- Sun 12 May 2019 23:32GMT´óÏó´«Ã½ World Service
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