Quirks & Quarks Cows Give Daughters More Milk

Quirks & Quarks Cows Give Daughters More Milk

Many human parents try hard to treat their sons and daughters equally. But when it comes to making milk, many mammals can be a bit unfair. Cows, for example, make significantly more milk for their daughters than their sons. Dr. Katie Hinde, an evolutionary biologist at Harvard University, discovered this, when she and her colleagues examined millions of dairy records. The study suggests that the bias begins during pregnancy, since dairy calves are separated from their moms at birth. The result seems to contradict a popular theory that moms with extra resources will favour their sons over their daughters, since the fittest males have the potential to create far more offspring than the fittest females. But Hinde thinks humans may also tailor their milk production for sons or daughters and that could have implications for how we feed our babies.

  • 2014
  • 00:08:49
  • 13-14
  • Added on: 02/06/2014
We’re sorry! Access to platform content is limited to Curio.ca subscribers. To verify if your school or institution is currently subscribed to Curio.ca, please see the Curio.ca Subscribers page.

Metadata

Subjects
Milk [LCSH] Milk yield [LCSH] Lactation [LCSH] Dairy cattle [LCSH] Dairy farming [LCSH] Evolution (Biology) [LCSH] Science [LCSH] Biology [LCSH]
Team
Bob McDonald (Host), Jim Handman (Producer), Jim Lebans (Producer), Emily Chung (Producer), Mark Crawley (Producer)
Closed captioning
Not available
MARC Record
View Download

Can be found in

Categories