Has climate change modified human body size? : The standard human body size has changed “significantly” throughout the last million years & is “strongly connected” to climate.

This is claimed by an interdisciplinary group of researchers, guided by the Universities of Cambridge, UK & Tübingen, Germany, that collected measurements of body & brain size for over 300 fossils from the Homo genus – to where modern day humans, Homo sapiens, fit in. These fossils were found all over the globe.

They discovered colder & harsher climates made the evolution of larger body sizes at the same time that warmer climates brought about smaller bodies, as well as brain size also changing “dramatically” although not evolving at the same time with body size.

A researcher who guided the study in the University of Cambridge’s Department of Zoology, Professor Andrea Manica stated: “Our study indicated that climate – particularly temperature – has been the main driver of changes in body size over the past million years.

“We can see from people living today that those in warmer climates tend to be smaller & those living in colder climates tend to be bigger. We now know that the same climatic influences have been at work over the last million years.”

The researchers further inspected the result of environmental factors on brain size however correlations were discovered to be basically weak.

They believe non-environmental elements were more important compared to climate for driving larger brains – these were the additional cognitive challenges of increasingly complex social lives, more varied diets & more complex technology.

First author of the study, Dr Manuel Will from the University of Tubingen said: “We found that different factors determine brain size & body size – they’re not under the same evolutionary pressures. The environment has a much greater influence on our body size compared to our brain size.

“There is an indirect environmental influence on brain size in more stable & open areas: the amount of nutrients gained from the environment had to be enough to allow for the maintenance and growth of our large & particularly energy-demanding brains.”

Has climate change modified human body size?

, , , , , , , , ,
Previous Post
Yorkshire Water initiates 2030 roadmap to net zero
Next Post
Greece sent to EU Court again because of poor air quality

Related Posts

Inquiry into function of tidal energy in UK’s low carbon mix

Inquiry into function of tidal energy in UK’s low carbon mix: The Environmental Audit Committee (EAC) has launched a new inquiry into the role of tidal energy in the UK’s low carbon energy mix & the nation’s obligation to evolve into net zero by 2050. While tidal power generation is alleged to have compelling potential…
Read More

The new center of EVs for the UK could be in Sunderland

The new center of EVs for the UK could be in Sunderland Nissan has recently revealed they will become home to a brand new £1 billion gigafactory. The new project, which has been described as transformational for the region, has recently been launched with a huge investment from Nissan and Envision AESC. The new plant…
Read More
Menu

Subscribe to our newsletter!

You have successfully subscribed to the newsletter

There was an error while trying to send your request. Please try again.

British Utilities will use the information you provide on this form to be in touch with you and to provide updates and marketing.