Human-Reaper

The Human-Reaper was a new Reaper created by the Collectors. Under the orders of Harbinger, the Collectors began abducting humans from colonies across the edge of the Terminus Systems and took them to the Collector base.

There the abductees were held helplessly in organic pods. Periodically, they would be broken down into raw genetic material which was pumped through tubes to the centre of the Collector base, and used to create the Human-Reaper. Since it used the material from tens of thousands of humans, it took on a human appearance. EDI suggested that this is how the Reapers 'reproduce'. She also gave a rough estimate that it would take many times the number of harvested humans already to complete it. She speculated that all Reapers are built to resemble the race used to create it.

When Commander Shepard discovered the Human-Reaper, it was an inactive larva. After destroying the pumps funnelling the human genetic material into it - which also supported the Human-Reaper during its construction - the Human-Reaper fell into a pit to its apparent destruction. However, it was able to activate itself and climb back up to engage Shepard and the team. They proceeded to destroy the Human-Reaper once and for all by damaging specific points on its armour.

Trivia
During development, the Human-Reaper was nicknamed "Baby".

The reaper has the facial features of a terminator from the first movie.