British researchers say they have created embryos and stem cells using human cells and the egg cells of cows, but said such experiments would not lead to hybrid human-animal babies, or even to direct ...

In early March, Dr. Barb Petersen, a large-animal vet in Texas, began getting calls from the dairy farms she works with in the Panhandle. Workers there were seeing a lot of cows with mastitis, an ...

A genetically modified cow has produced milk containing human insulin, according to a new study. The proof-of-concept achievement could be scaled up to, eventually, produce enough insulin to ensure ...

Dr. Jim Donahue and his team at ReproHealth Technologies are tweaking the design on a device that allows a surrogate cow to incubate embryos. (IBJ photos/Eric Learned) Dr. Jim Donahue did not ...

Cows have entry portals for both human and bird flus. This new finding may mean that cattle could host both types of flus at once. The two viruses could then swap parts to create a new type of ...