Before sunrise, groups of women leave the internal displacement camps on the outskirts of Kismayo, southern Somalia, ...

Thousands of seeds from native African tree species and indigenous varieties of crops have been deposited in the cold, dry rock vaults of the Svalbard Global Seed Vault in the permafrost of northern ...

Acacia trees in Costa Rica have an obligate mutualism with three species of Pseudomyrmex ants, which vigorously defend their host tree from insect and mammalian herbivores. Depending on the size and ...