13 min listen
Most U.S. Dairy Cows Come From 2 Bulls. That's Not Good.
FromShort Wave
ratings:
Length:
9 minutes
Released:
Nov 12, 2019
Format:
Podcast episode
Description
NPR science correspondent Dan Charles explains why most of the dairy cows in America are descended from just two bulls, creating a lack of genetic diversity that can lead to health problems. He also visits a lab at Penn State University where scientists are trying to change that. Follow reporter/host Emily Kwong on Twitter @emilykwong1234. Email the show at shortwave@npr.org.
Released:
Nov 12, 2019
Format:
Podcast episode
Titles in the series (100)
Seen Any Nazi Uranium? These Researchers Want To Know: Nazi Germany tried to build a nuclear reactor. How evidence of that effort was almost lost to history. by Short Wave