California sea lions bred sporadically on the Farallones for decades, but in 2010 the population began growing exponentially. In 2025, we counted a record 1,526 pups. This year, 1,420 pups were counted. A spring marine heatwave and severe El Niño may have contributed to the slight dip in pup counts.

Early-career bird banders are part of a rigorous training program, where they learn to capture birds safely and record data on each bird caught. The info collected allows us to understand how populations of birds are doing and in turn gives us insight into the health of the systems we research.

Buenos días, Piur,
pues se ve que lo de las familias con hijos que tienen enfermedades raras pasa a ser algo 'íntimo'.

Disfruta pisoteando a los más vulnerables. Es una bicha mala.