Sperm vs Sperm Whale: Who has it easier?

Sperm whale versus sperm, a swim-off

It turns out that when you’re as small a sperm, swimming through fluid is a lot tougher. Sperm whale versus sperm, a swim-offWhen you’re a whale, it’s no problem slipping by all the tiny water molecules around you. As you shrink in size, you start to approach the size of the fluid molecules themselves, and all the sudden you’re swimming in a traffic jam full of relatively huge objects that are getting in your way. But nature always wins, and finds ingenious ways to MacGyver around these small-scale problems.

Source Aatish Bhatia
Image Brad Purnell