Science ❯ Ecology ❯ Ecosystems
Scavengers Predator-Prey Relationships Early Animal Life Herbivory Predation Trophic Levels Parasitic Relationships Aquatic and Terrestrial Species Insectivory Species Distribution Mesopredators Predators Herbivores Ground Squirrels
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.