There were some here…
and even some in the flight deck! (Sorry Martin!)
so I reckon we could fit more than a 100 otters on board Concorde!
My day at Duxford Air Museum, Cambridgeshire, UK on board Concorde (I remembered I had this postcard of otters in my room, which I’ve had for years, and thought I’d have some Cabin Pressure related fun with it)