[They] are showing (us) what [THEY DO]

Tulkuns Hold The Key to Immortality

When Colonel Miles Quaritch (Stephen Lang) decides to hunt down a tulkun to lure Jake Sully out, he discovers that there's a greater motive behind the deployment of whaling ships by the RDA to hunt the tulkuns. He finds out that a gland in the base of the tulkun skull secretes a yellow liquid that bears great value for the RDA as it stops human aging. Based on the Hindu mythological concept of immortality potion, Amrita is the most profitable substance on Pandora that drives all of RDA's work on the planet. One vial of Amrita is worth 80 million dollars, and it's supposedly the only useful substance for which an entire tulkun is killed by the RDA. After extracting the yellow liquid, the tulkun's body is disposed of in the sea waters

.Avatar way of the water

Watch the Water

https://collider.com/avatar-2-the-way-of-water-whales-tulkun/