Answer: apes

AnswerCrossword Clue
APES

Big lugs

APES

Gibbons

APES

Copies

APES
Edgar Rice Burroughs characters
APES
Mimics
APES"2001" characters
APESFollows suit
APESImitates
APESDoes a takeoff
APESJungle critters
APES"The IRS ..." (Willie Nelson album)
APESCaesar's soldiers, in a film franchise
APESCaesar, Koba, and Maurice in a 2014 film
APESBig galoots
APESCornelius and Zira
APESParrots
APESZoo section
APESTarzan's family?
APESNatural mimics
APESGoons
APESTarzan's clique
APESTarzan's posse
APESDian Fossey study
APESOur cousins
APESOur closest kin
APESSimians
APESAnimals studied by Yerkes
APESOur forebears, per Darwin
APESSiamangs, e.g.
APESHumorously mimics
APESFossey's focus
APESDr. Zaius and others
APESDoes an impression of
APESGoodall subjects
APESLummoxes
APESGibbons, e.g.
APESParodies
APESGaloots
APESMocks by imitating
APESPalookas