Since a new form of bird flu arrived in 2022, federal officials have sought to reassure Americans that the threat to the public remained low.

Letting milk cows graze longer can produce superior beef — a largely European practice that is now gaining ground in America.

A single spillover, from a bird to a cow, led to the infections, a review of genetic data has found.

El virus H5N1 ya ha matado a decenas de miles de mamíferos marinos y se ha infiltrado por primera vez en el ganado de EE. UU. ¿Cuál es el riesgo para los seres humanos? Los científicos trabajan con rapidez para encontrar respuestas.

The milk poses virtually no risk to consumers, experts said. But the finding suggests that the outbreak in dairy cows is wider than has been known.

Animal-welfare science tries to get inside the minds of a huge range of species — in order to help improve their lives.