Because they are what scientists refer to as endoplasmicrecterium
Yes.
Usually, no.Vampire bats do hang upside down, all bats do.
They do.
Hang upside down technology comes in different forms. Different places sell inversion tables or upside down chairs. There are stores online for the inversion tables and Wal-Mart even has a hang upside down chair for sale.
David Blaine will hang upside down for 60 hours for his "Dive of Death."
No it is not normal for a praying mantis to hang upside down
you sure can.
They don't.
They hang ks upside down in baseball to show that the batter was struck out without swinging the bat
No some moths go on the ground and most caterpillars hang upside down and some stay on the ground
yes
Hang upside down