A tight fit between the birth canal and the baby’s head is not unique to humans, with comparable or tighter fits found in several other primates, including squirrel monkeys and bush babies, according to a study published in Nature Ecology & Evolution.

Nature Portfolio @NaturePortfolio ·
A tight fit between the birth canal and the baby’s head is not unique to humans, with comparable or…

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  1. #1

    What do you do after you’ve been to the Moon and back? Flying in space is a hard act to follow, but many astronauts have forged thriving post-space careers by redirecting their im…

    Nature Portfolio @NaturePortfolio ·
    What do you do after you’ve been to the Moon and back? Flying in space is a har…
  2. #2

    The number of chicks in the Coulman Island emperor penguin colony decreased by around 69% in 2025, according to research in Communications Earth & Environment. The study sugge…

    Nature Portfolio @NaturePortfolio ·
    The number of chicks in the Coulman Island emperor penguin colony decreased by… The number of chicks in the Coulman Island emperor penguin colony decreased by…
  3. #3

    A newly identified snake species found in Brazil may be the earliest-known snake to have diverged from the stem line, according to research in Nature.

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    A newly identified snake species found in Brazil may be the earliest-known snak…
  4. #4

    A paper in Nature presents observations of what may be the first known three-tiered hierarchical system — a satellite orbiting a brown dwarf, which in turn orbits a star. It remai…

    Nature Portfolio @NaturePortfolio ·
    A paper in Nature presents observations of what may be the first known three-ti…
  5. #5

    A paper in Nature Communications reports the detection of what may be the remnants of a companion to the star that exploded to form IC 443, also known as the Jellyfish nebula.

    Nature Portfolio @NaturePortfolio ·
    A paper in Nature Communications reports the detection of what may be the remna…
  6. #6

    A study in Nature Communications finds evidence of effects of loneliness and social isolation on poorer mental health and wellbeing, and effects of loneliness on poorer general he…

    Nature Portfolio @NaturePortfolio ·
    A study in Nature Communications finds evidence of effects of loneliness and so…

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