University of California Television (UCTV) | CARTA: Evolutionary Changes in Human Birth Spacing @uctv | Uploaded December 2023 | Updated October 2024, 1 week ago.
Life history theory suggests that inter-birth intervals (IBIs) depend on a trade-off between maternal investment in current and future offspring, influenced by the mother's energy and somatic maintenance. Normally, IBI aligns with maternal and infant body size, larger relative infant size leading to slower breeding. In contrast, humans have relatively shorter IBIs due to cooperative breeding, support from the social group. Some other species with cooperative behaviors also exhibit shorter IBIs, possibly aided by factors like meat-eating enabling early weaning around 2.5 million years ago in the Homo lineage. [1/2024] [Show ID: 39276]
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Learn more about anthropogeny on CARTA's website:
carta.anthropogeny.org
More from: CARTA: Comparative Anthropogeny and Other Approaches to Studying Human Origins
(uctv.tv/carta-comparative-anthropogeny)
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UCTV is the broadcast and online media platform of the University of California, featuring programming from its ten campuses, three national labs and affiliated research institutions. UCTV explores a broad spectrum of subjects for a general audience, including science, health and medicine, public affairs, humanities, arts and music, business, education, and agriculture. Launched in January 2000, UCTV embraces the core missions of the University of California -- teaching, research, and public service – by providing quality, in-depth television far beyond the campus borders to inquisitive viewers around the world.
(https://www.uctv.tv)
Life history theory suggests that inter-birth intervals (IBIs) depend on a trade-off between maternal investment in current and future offspring, influenced by the mother's energy and somatic maintenance. Normally, IBI aligns with maternal and infant body size, larger relative infant size leading to slower breeding. In contrast, humans have relatively shorter IBIs due to cooperative breeding, support from the social group. Some other species with cooperative behaviors also exhibit shorter IBIs, possibly aided by factors like meat-eating enabling early weaning around 2.5 million years ago in the Homo lineage. [1/2024] [Show ID: 39276]
Donate to UCTV to support informative & inspiring programming:
uctv.tv/donate
Learn more about anthropogeny on CARTA's website:
carta.anthropogeny.org
More from: CARTA: Comparative Anthropogeny and Other Approaches to Studying Human Origins
(uctv.tv/carta-comparative-anthropogeny)
Explore More Humanities on UCTV
(uctv.tv/humanities)
The humanities encourage us to think creatively and explore questions about our world. UCTV explores human culture through literature, history, ethics, philosophy, cinema and religion so we can better understand the human experience.
Explore More Science & Technology on UCTV
(uctv.tv/science)
Science and technology continue to change our lives. University of California scientists are tackling the important questions like climate change, evolution, oceanography, neuroscience and the potential of stem cells.
UCTV is the broadcast and online media platform of the University of California, featuring programming from its ten campuses, three national labs and affiliated research institutions. UCTV explores a broad spectrum of subjects for a general audience, including science, health and medicine, public affairs, humanities, arts and music, business, education, and agriculture. Launched in January 2000, UCTV embraces the core missions of the University of California -- teaching, research, and public service – by providing quality, in-depth television far beyond the campus borders to inquisitive viewers around the world.
(https://www.uctv.tv)
