In Alien Resurrection, due to significant genetic tampering in an attempt to recover DNA from the deceased Ellen Ripley and the Alien queen within her, the resulting cloned Aliens show a number of minor human traits. The cloned queen inherits a perversion of a human womb, and as a result, it ceases to lay eggs and gives birth to a humanoid mutant hybrid.
Physically, the human/Alien Newborn is very different from other alien young, being larger, with pale, translucent skin, a skull-shaped face with eyes, a human tongue, and a complete absence of a tail. The Newborn fails to bond with its Alien queen mother, killing it, and imprinting on the Ripley clone instead.