Op zaterdag 9 juli 2022 om 18:38:44 UTC+2 schreef
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Welcome
Next Talk July 10th 2022 8pm (West Australian Time)
in Honour of Peter Rhys-Evans 1948 - 2022 https://us06web.zoom.us/j/87253320679?pwd=SVp2SGl0SmRJQkVaRnlSYnVwc3hhZz0
Thanks a lot for your excellent WHAT-talks, Algis!
Peter Rhys-Evans: 74 % of neandertals had ear exostoses, and males>females: such exostoses only develop in swimmers+divers in colder water (<20°C?): apparently all neandertal men & many women very frequently dived: at least seasonally.
Paranasal sinuses (PNSs) are what the word says: around the nasal air entrance: PNSs possibly hinder deeper diving, but H.erectus has small PNSs (salt water). PNSs were much larger in neandertal & sapiens:
- neandertals dived more often in fresh water,
- they had a diving cycle with back-floating (nose up) between 2 dives.
Why no SC fat in humans frontally?
Probably hydrodynamically there was no place there for SC fat:
most of our fat is where you could expect: at the abdomen & around the trunk: hydrodynamism.
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