Grounded Running in Birds

Have you ever chased after a bird? Trying to catch a gull or a robin is an exercise in futility because birds can run at very high speeds. In our part of the world, we have a bird called the Killdeer, which lays its eggs on the ground in the open. As a teenager, I would chase the adult birds, thinking I could catch one, but I did not realize they were running on the ground to lead me away from their nest. I never thought about why I could never catch one because I would run out of breath before the bird would. Researchers have studied what they call “grounded running” in birds.

When humans are in a hurry, they use what is called “aerial running,” in which we pick up our feet. In grounded running, birds always keep one foot on the ground. Keeping a foot on the ground consumes less energy than human aerial running. Dr. Armita R. Manafzadeh of Yale University says that even though grounded running may look funny, “It’s actually a pretty smart thing to do when you have the anatomy of a bird.” According to Dr. Manafzadeh, “If we try to interpret the diversity of animal locomotion through a human-centric lens, we’re going to miss out on lots of really cool and equally viable ways of moving around the world.”

It is only through modern technology that we have been able to study the ground running of birds. What appears to be a silly-looking strategy is a beautifully designed system that meets the bird’s needs. The more we learn about the design and wisdom displayed in the creation, the more we see the wisdom and creativity of God.

“But ask the beasts, and they will teach you;
And the birds of the air, and they will tell you;
Or speak to the earth, and it will teach you;
And the fish of the sea will explain to you.
Who among all these does not know
That the hand of the Lord has done this,
In whose hand is the life of every living thing,
And the breath of all mankind?” (Job 12:7-10 NKJV)

— John N. Clayton © 2024
Reference: Scientific American magazine for December 2024, page 12.