Narrator in “Unfinished Business”

Around him, the other residents of the canyon are starting to stir - strange beasts like the Chalicotheres. Almost three metres tall, they walk on their knuckles to protect their long claws. These powerful limbs are very effective defensive weapons, but more often, these herbivores use them to hook down branches to get at the softest leaves. They walk like gorillas and eat like pandas, but their closest modern relatives are actually horses!