Human embryos embrace asymmetry to form the body
The cells generated by the very first division of the fertilized egg make a lopsided contribution to the body’s organs and tissues.
The cells generated by the very first division of the fertilized egg make a lopsided contribution to the body’s organs and tissues.
An exploration of the evolution of male nurturing shows why, unlike fathers among other great apes, human dads are biologically wired to be hands-on parents.
Clarifying how genome duplication and triplication events shaped early vertebrate genomes has presented a challenge in evolutionary biology. The genome of the jawless hagfish provides a missing piece of this puzzle.