Fly or swim?

Uria lomvia, the Thick-billed Murre

A recent study of the wing-propelled diving bird Uria lomvia shows that it has the highest recorded flight cost among vertebrates. That is, this bird (which consumes 146 watts/kg while flying) is so well-adapted to using its wings for diving that its flying suffers. In other words, the Thick-billed Murre is half-way to becoming a penguin.

Spheniscus humboldti (the Humboldt Penguin) swimming (photo: “Joccay”)


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.