African Elephants: Okavango Delta

Botswana supports the world’s largest national population of African elephants, with the Okavango Delta forming an important core habitat. The elephants found in this region are African savanna elephants (Loxodonta africana), the largest living land animals. African savanna and African forest elephants are now recognized as separate species.

African savanna elephants live in complex social networks built around related females and their young. They communicate through touch, scent, visible gestures, and vocalizations, including low-frequency rumbles. Some of these calls also create vibrations that travel through the ground, and experiments have shown that elephants can distinguish seismic alarm calls produced by familiar and unfamiliar groups.

Their most recognizable features are highly specialized survival tools. Large, thin ears contain extensive blood vessels and help release body heat. Tusks are elongated incisor teeth used for digging, removing bark, moving objects, defense, and social competition. Individuals may preferentially use one tusk, causing it to become more worn than the other.

The trunk is a fusion of the nose and upper lip. It contains no bones but is controlled by tens of thousands of small muscle fascicles, allowing both powerful movements and extremely precise manipulation. African elephants have two finger-like projections at the trunk tip that can pinch and grasp small objects. The trunk is used for smelling, breathing, touching, feeding, producing sounds, and drawing up water before transferring it into the mouth.

Even the elephant’s wrinkled skin is highly adapted. Networks of microscopic channels retain water and mud, helping cool the body while providing protection from sunlight and parasites. Research indicates that this cracked surface can retain five to ten times more water than a smooth surface.