pee

Hummingbirds are tiny (and I mean, tiny) birds. They use up energy very quickly and barely store any fat, so they really don’t have a backup generator to rely on if they come close to running out of fuel. I’m really interested in how they manage this limited energy over short time scales. That's why I am obsessed with their pee and torpor. Learn why....

Call it the other Golden Rule: Scientists have found that all mammals weighing more than 2.2 pounds (a kilogram) empty their full bladders in about 20 seconds. Like many new parents, David Hu, a mechanical engineer at the Georgia Institute of Technology, has changed a lot of diapers. Unlike many new parents, however, these soggy diapers...

Call it the other Golden Rule: Scientists have found that all mammals weighing more than 2.2 pounds (a kilogram) empty their full bladders in about 20 seconds. Like many new parents, David Hu, a mechanical engineer at the Georgia Institute of Technology, has changed a lot of diapers. Unlike many new parents, however, these soggy diapers...