Planet's most extreme

Describes ten of the smartest animals in the world and compares their intelligence with that of humans.

Describes ten of the strongest animals in the world and compares their strength to that of humans.

Describes ten of the most aggressive fighters in the animal kingdom and compares their behavior with humans.

Describes the ten fastest animals on the planet and compares their speed to human attempts at speed.

Describes ten of the best builders in the animal kingdom and compares their buildings with those of human architects.