Biologists like to say that reproduction is the ultimate investment, a costly gamble that shapes everything from lifespan to ...

These “walking sharks” can lay eggs without spending extra energy, rewriting what scientists thought they knew about reproduction.

Quite an advantage in today’s world.

Scientists at the Max Planck Institute for Biology have discovered a remarkably streamlined strategy for developmental ...

New research shows that epaulette sharks, often called “walking sharks,” can produce eggs without increasing their overall energy use.