Stephen Jay Gould with giraffe

Vertical

At the Giraffe Centre near Nairobi, Kenya, two highly evolved mammals contemplate each other

Delta Willis

Horizontal

At the Giraffe Centre near Nairobi, Kenya, two highly evolved mammals contemplate each other

Delta Willis

Thumb

At the Giraffe Centre near Nairobi, Kenya, two highly evolved mammals contemplate each other

Delta Willis