What appears to be a life-affirming triumph is really a cautionary tale about drones and wildlife.
Pets left behind when people fled the disaster in 1986 seem to have seeded a unique population.
The threat to humans is low. But the status quo is still pretty troubling.
New evidence is prompting some researchers to rethink ethics in the lab.
James Parker explains the appeal of shows like It's Me or the Dog and Meerkat Manor.
Medical-research institutions draw on a thriving black market in stolen and fraudulently obtained pets