So we found out:
- Hoverflies can fly upside down as @mabah said
- An upside down jellyfish can do that while swimming as @nmddbn said
I found out that sharks cannot go upside down or they get in a sleeping state!!! You can read here about tonic immobility: https://www.sharktrust.org/tonic-immobility So if you have a shark and put him with the belly up they are like asleep or in a trance. Here is a video of tiger sharks and tonic immobility: https://www.youtube.com/watch?v=NErt6zP2MBI
So next time you want to drink a tonic you get a sleeping shark!! π π¦π¦π¦
Maybe @Lianshen and @Miss_Penpal know more (Lianshen knows a lot about animals and Miss_Penpal loves the sea and water animals too). ππ