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.

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

Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to ...

New research reveals walking sharks reproduction involves no extra energy use, challenging long-held beliefs about marine ...

When mammals have offspring, both in the wild and in captivity, new life is celebrated. This is especially true for species ...

In India’s harsh deserts, spiny-tailed lizards subtly change diets with seasons, storing energy for winter and shifting food ...

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