The lifespan of some animals live is absurd considering the complexity and energy involved in their evolution and growth. The particular example my brain always circles back to is cuttlefish.

A cuttlefish has ten limbs, jet propulsion, active camouflage, eyes with no blind spot, is venomous, can spray ink, is probably smarter than a dog. It lives about 2 years!?

It's like building a gyrocopter Fabergé egg with a laser and a Deep Blue AI then dropping it straight into a hammermill.