Factual error: The heat from Dutch's body would warm the mud up in a matter of seconds (tested by the Mythbusters). It doesn't even cover all of his skin or his eyes. And the Predator isn't filtering his input for only large heat sources. His normal vision tracks in on a rat hiding just above Dutch.

Predator (1987)
Ending / spoiler
Directed by: John McTiernan
Starring: Arnold Schwarzenegger, Carl Weathers, Bill Duke, Elpidia Carrillo, Kevin Peter Hall, Sonny Landham, Jesse Ventura, Richard Chaves
Arnie fights with the Predator and is losing right to the end when he manages to drop a log trap on the alien bad guy. The alien bad guy self destructs. Arnie makes a run for it and makes it to the rescue chopper.
Gavor
Trivia: Jesse Ventura could only carry enough blank ammunition to fire "Old Painless" for five seconds even though the props department had dramatically reduced the cyclic rate of the weapon to allow the camera to film the barrels rotating.
Question: What's up with the predator's eyes glowing for a second while it's invisible, and does anyone know why the predators in the other movies don't do this?
Answer: They do add the flash eyes while cloaked effect in Alien vs Predator: Requiem and Predators. I think it's both when it uses zoom-in vision and maybe to intimidate by showing itself so close to its prey. "Those eyes, just appeared."
I think he did it to intimidate Mac and Dillion.
Answer: Its the old predator design. Look closely the optical silhouette, it doesn't match. Google early predator design.





Answer: In the shots where we can see what the Predator sees, sometimes when he is focusing on someone or something, we hear a kind of flash noise as he zooms in on the object. When we see the Predator's eyes flashing/glowing, that is when he is zooming in on what he's looking at.
dan coakley..