Science ❯ Ecology ❯ Ecosystems
Scavengers Early Animal Life Species Distribution Herbivory Aquatic and Terrestrial Species Herbivores Predators Predator-Prey Relationships Parasitic Relationships Insectivory Predation Trophic Levels Ground Squirrels Mesopredators
The team reconstructed more than 18 mitochondrial genomes from permafrost‑sealed squirrel droppings, creating a new window on Ice Age ecosystems that also raises questions about sample ages and contamination.