This is called “upward-facing dog” in Yoga, or more properly: Urdhva Mukha Svanasana (OORD-vuh MOO-kuh shvan-AHS-uh-nuh). It’s a way to lengthen and strengthen the spine, torso, and arms. Why is this pose named “upward dog“? Nobody really knows. There are poses in Yoga also named for crows eagles, pigeons and lizards. There’s even a downward-facing dog.
Maybe we’ll show you the lizard pose the next time we post.
By the way, the photo is by Jessica Quinn on Flickr at https://www.flickr.com/photos/jlee43/384364641/.