Starfish don’t breathe like us. No lungs, no gills—just skin and water.
Ever asked yourself: how do starfish breathe? It’s actually pretty wild. They use tiny skin extensions called papulae to absorb oxygen straight from the water. There’s no central system—each limb kind of does its own thing, pulling in oxygen through these soft projections and even through their tube feet.
The more I read about how starfish function, the more it blew my mind. Seriously—how do starfish breathe without any lungs, gills, or even blood like ours? Nature just finds a way.
That got me thinking: if life on Earth is already this strange, what might it look like on alien planets?
And Destiny has already explored some wild biology:
So here's the question for fellow Guardians:
Which alien species in Destiny has the weirdest physiology?
And if Bungie introduced a sea-dwelling race that breathes like a starfish, what would that look like?
Drop your ideas—and more strange biology facts—below.

Ever asked yourself: how do starfish breathe? It’s actually pretty wild. They use tiny skin extensions called papulae to absorb oxygen straight from the water. There’s no central system—each limb kind of does its own thing, pulling in oxygen through these soft projections and even through their tube feet.
The more I read about how starfish function, the more it blew my mind. Seriously—how do starfish breathe without any lungs, gills, or even blood like ours? Nature just finds a way.
That got me thinking: if life on Earth is already this strange, what might it look like on alien planets?
And Destiny has already explored some wild biology:
- Hive worms living inside hosts
- The Eliksni's ether dependence
- The Taken, who seem to exist outside physical rules
So here's the question for fellow Guardians:


Drop your ideas—and more strange biology facts—below.

