> There's evidence to suggest that orcas use tonic immobility to prey on sharks.
> In 1997, an Orca in the Farallon Islands was seen holding a White Shark upside down for 15 minutes. Whether intentional or not, the Orca likely caused the shark to enter tonic immobility. Defenceless, the shark, suffocated. This also happened again in 2000.
> In New Zealand, Orcas also seem to use tonic immobility to hunt stingrays. Before attacking the orcas will turn themselves upside down. Then, holding the stingray in their mouth, they'll quickly right themselves. Flipping their prey upside down.
> In 1997, an Orca in the Farallon Islands was seen holding a White Shark upside down for 15 minutes. Whether intentional or not, the Orca likely caused the shark to enter tonic immobility. Defenceless, the shark, suffocated. This also happened again in 2000.
> In New Zealand, Orcas also seem to use tonic immobility to hunt stingrays. Before attacking the orcas will turn themselves upside down. Then, holding the stingray in their mouth, they'll quickly right themselves. Flipping their prey upside down.
https://www.sharktrust.org/tonic-immobility