Image of the Day: Slow-Growing Brains
Image of the Day: Slow-Growing Brains
Scans of eight fossilized adult and infant Australopithecus afarensis skulls reveal a prolonged period of brain growth during development that may have set the stage for extended childhood learning in later hominins.
Image of the Day: Slow-Growing Brains
Image of the Day: Slow-Growing Brains

Scans of eight fossilized adult and infant Australopithecus afarensis skulls reveal a prolonged period of brain growth during development that may have set the stage for extended childhood learning in later hominins.

Scans of eight fossilized adult and infant Australopithecus afarensis skulls reveal a prolonged period of brain growth during development that may have set the stage for extended childhood learning in later hominins.

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brain development
Image of the Day: Brainless Frogs
Image of the Day: Brainless Frogs
Amy Schleunes | Feb 18, 2020
Without a brain, the frog embryo immune system doesn’t receive the signals it needs to mobilize macrophages and fight infections.
Researchers Implant Memories in Zebra Finch Brains
Researchers Implant Memories in Zebra Finch Brains
Abby Olena | Oct 3, 2019
Juvenile birds learn the length of the sounds in a song from a false memory introduced via optogenetics, instead of from real interactions with a tutor bird.
State Marijuana Legalization Aids Research Very Little
State Marijuana Legalization Aids Research Very Little
Ashley Yeager | Sep 20, 2019
Recent federal announcements serve as reminders that in the US policy continues to outpace science when it comes to cannabis.
Marijuana Unsafe During Pregnancy or Adolescence: Surgeon General<br>
Marijuana Unsafe During Pregnancy or Adolescence: Surgeon General
Nicoletta Lanese | Aug 30, 2019
The federal government cautions that the drug can affect brain development in both teens and fetuses.
EPA Will Not Ban Pesticide Linked to Neurological Issues
EPA Will Not Ban Pesticide Linked to Neurological Issues
Nicoletta Lanese | Jul 19, 2019
The agency argues that chlorpyrifos is one of few “cost-effective options” for controlling certain farm pests.
Monkeys Genetically Edited to Mimic Human Brain Development
Monkeys Genetically Edited to Mimic Human Brain Development
Chia-Yi Hou | Apr 10, 2019
Rhesus monkeys engineered to express a human gene reportedly show delayed brain development and better short-term memory. Fellow scientists are raising ethical red flags.
Does Sharing the Womb with a Brother Affect Girls?
Does Sharing the Womb with a Brother Affect Girls?
Ashley Yeager | Mar 19, 2019
A study links having a male twin with women’s educational, financial, and childbearing decisions. Researchers suspect prenatal exposure to testosterone may play a role.
Brain Surface Area Reveals Overlap in Genes, Intelligence, Evolution
Brain Surface Area Reveals Overlap in Genes, Intelligence, Evolution
Carolyn Wilke | Mar 4, 2019
An analysis of the contours of more than 600 kids’ brains points to links between cerebral surface area and heritability in regions of the brain important in cognition.  
Cannabinoid Exposure During Adolescence Disrupts Neural Regulation
Cannabinoid Exposure During Adolescence Disrupts Neural Regulation
Jef Akst | Nov 6, 2018
Young rats injected with a synthetic cannabinoid have more of the brain’s motivating dopaminergic signaling and fewer numbers of inhibitory neurons than controls.