Shriekers
Background
Shriekers are the second life stage for Graboids. They are hermaphrodites and use an organ on the top of their heads to sense heat.
During the events of Tremors 2: Aftershocks (1996)
A Shrieker opens the top of its skull and then shrieks when it senses Earl Bassett and Grady Hoover and charges at Earl and Grady, who shoot and kill it. Another one attacks and kills Julio, but is killed by Earl and Grady. As they are trying to leave with Kate Riley, their car is destroyed by a Shrieker. Burt Gummer drives up in his truck and angrily tells Earl he was denied critical information. He then shows him the captive Shrieker he brought back and they put it in a cage. A wounded Shrieker falls from the bottom of the truck and starts to eat an MRE. They test the ability of the Shrieker to detect them and realize it senses with thermal vision. Grady feeds it part of an MRE and after it eats it, it vomits up another Shrieker. A Shrieker breaks into the office and Earl looks into the warehouse and sees a large group of Shriekers eating Burt's MRE's. Burt kills a lone Shrieker that is standing between them and Julio's car. As they are running towards the cantina, a Shrieker senses them and shrieks. Earl and Kate make it into the cantina while Grady is forced to climb up an oil tower and Burt has to jump into the bucket of a front loader. Earl uses a heated up jumpsuit tied to a clothesline to distract the Shriekers while he and Kate climb up the oil tower Grady is on. While they are waiting to be rescued, the Shriekers start to form a pyramid to get to where they are at. Burt gets out of the bucket and runs towards another warehouse. The Shriekers all follow him and he runs out the backdoor and locks them inside. The Shriekers start to shriek and Earl, Kate, Grady and Burt realize the warehouse stores sweet snacks. All of the Shriekers are killed when Earl detonates a bomb in the warehouse.
