The Experiment is the twenty-eighth book in the Animorphs

Animorphs

Animorphs is an English language science fiction series of young adult books written by K. A. Applegate and published by Scholastic. Five humans, Jake, Marco, Cassie, Rachel, and Tobias, and one alien, Aximili-Esgarrouth-Isthill , obtain the ability to morph into any animal they touch. They name...

series, written by K.A. Applegate. It is known to have been ghostwritten

Ghostwriter

A ghostwriter is a professional writer who is paid to write books, articles, stories, reports, or other texts that are officially credited to another person. Celebrities, executives, and political leaders often hire ghostwriters to draft or edit autobiographies, magazine articles, or other written...

 by Amy Garvey. It is narrated by Ax

Aximili-Esgarrouth-Isthill

Aximili-Esgarrouth-Isthill is a fictional character from the sci-fi book series Animorphs.-Biography:Aximili is a young Andalite who becomes stranded on Earth when the Andalite Dome Ship GalaxyTree is shot down by Yeerk fighters...

.

The front cover quote is "Change is a good thing. A very good thing..." The inside cover quote is "Got milk?

Got Milk?

Got Milk? is an American advertising campaign encouraging the consumption of cow's milk, which was created by the advertising agency Goodby Silverstein & Partners for the California Milk Processor Board in 1993 and later licensed for use by milk processors and dairy farmers. It has been running...

"

Plot summary

The Animorphs find out from Erek that the Yeerks have taken control of a meatpacking plant and a laboratory. They acquire chimpanzees and infiltrate the lab. They don't find very much information so Tobias and Ax morph into bulls (thinking they would morph into steer but not realizing that the DNA does not include surgical procedures) to go to the meatpacking plant. Inside the plant, they discover a room with humans in cages. The computer tells them that it is an experiment designed to destroy the free will

Free will

"To make my own decisions whether I am successful or not due to uncontrollable forces" -Troy MorrisonA pragmatic definition of free willFree will is the ability of agents to make choices free from certain kinds of constraints. The existence of free will and its exact nature and definition have long...

 of the human population so that the Yeerks can take over easily, but a Yeerk scientist eventually confirms that the experiment was a total failure.

Morphs

Morpher	Morphs Acquired	Morphs Used
Jake Jake Berenson Jake Berenson is a fictional character and one of the main protagonists from the science-fiction book series Animorphs, written by K. A. Applegate. Until the penultimate book of the series, his last name was never revealed, and he was known only as Jake...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Fly Fly True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax... , Siberian Tiger
Rachel Rachel (Animorphs) Rachel is a fictional character from the sci-fi book series Animorphs. Her full name is never explicitly mentioned in the books, but her relation to her cousin Jake Berenson through their fathers makes it most likely to be Rachel Berenson, if it was never changed or hyphenated.-Biography:Before the...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Fly Fly True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax... , Grizzly Bear Grizzly Bear The grizzly bear , also known as the silvertip bear, the grizzly, or the North American brown bear, is a subspecies of brown bear that generally lives in the uplands of western North America...
Tobias Tobias (Animorphs) Tobias is a fictional character from the sci-fi book series Animorphs written by K.A. Applegate. His surname is never mentioned, but had the Ellimist not altered time in order to take his father, Elfangor-Sirinial-Shamtul, back to his old life, his full name would have been Tobias Fangor, the...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Bull Bull Bull usually refers to an uncastrated adult male bovine.Bull may also refer to:-Entertainment:* Bull , an original show on the TNT Network* "Bull" , an episode of television series CSI: Crime Scene Investigation...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Bull Bull Bull usually refers to an uncastrated adult male bovine.Bull may also refer to:-Entertainment:* Bull , an original show on the TNT Network* "Bull" , an episode of television series CSI: Crime Scene Investigation...
Cassie Cassie (Animorphs) Cassie is a fictional character from the sci-fi book series Animorphs, written by K. A. Applegate. Her last name is never mentioned, although she referred to it as being "nice" in The Secret.-Biography:...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Fly Fly True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax... , Wolf
Marco Marco (Animorphs) Marco is a fictional character from the sci-fi book series, Animorphs, written by K. A. Applegate. His last name is never mentioned.-Biography:...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Fly Fly True flies are insects of the order Diptera . They possess a pair of wings on the mesothorax and a pair of halteres, derived from the hind wings, on the metathorax... , Gorilla Gorilla Gorillas are the largest extant species of primates. They are ground-dwelling, predominantly herbivorous apes that inhabit the forests of central Africa. Gorillas are divided into two species and either four or five subspecies...
Ax Aximili-Esgarrouth-Isthill Aximili-Esgarrouth-Isthill is a fictional character from the sci-fi book series Animorphs.-Biography:Aximili is a young Andalite who becomes stranded on Earth when the Andalite Dome Ship GalaxyTree is shot down by Yeerk fighters...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Cow*, Bull Bull Bull usually refers to an uncastrated adult male bovine.Bull may also refer to:-Entertainment:* Bull , an original show on the TNT Network* "Bull" , an episode of television series CSI: Crime Scene Investigation...	Chimpanzee Chimpanzee Chimpanzee, sometimes colloquially chimp, is the common name for the two extant species of ape in the genus Pan. The Congo River forms the boundary between the native habitat of the two species:... , Cow*, Bull Bull Bull usually refers to an uncastrated adult male bovine.Bull may also refer to:-Entertainment:* Bull , an original show on the TNT Network* "Bull" , an episode of television series CSI: Crime Scene Investigation...

• Ax acquired the cow by accident, mistaking it for a bull.