Mystery shadow explained!

I said that earlier Jhawkins. 

S-Rex, I know, but perhaps Spion had a bad day, or it was ambushed. There's all kinds of possibilities for how it could down. 

I wouldn't be surprised if,they had Rex, kill spino. As they will probably get higher ratings if rex kills spino. Its kinda like shark weeks megalodon shows.

The Jurassic Park franchise has made Spinosaurus this super agressive predator. I highly doubt they'll downgrade Spinosaurus. Even Speilberg said, "we wanted a bigger/badder dinosaur"

So that would be a waste