Animals

Scientists toilet-train cows to reduce air pollution
The plant-based startup taking on food giants 6:22
Cultured meat for pets is about to hit store shelves
Clues in woolly mammoth tusk reveal a lifetime of travels
Baby mice “dream” about the world before seeing it
FDA approves first drug to treat lymphoma in dogs
Lab-grown foie gras eliminates force-feeding
CRISPR used to create first gene-edited opossums
How robots could end animal captivity in zoos and marine parks 7:45
Rarely seen glass octopus caught on film