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Vital statistics
Position Son of 8327 and 8331, Pancho, or Juan
Age 12
Status Deceased
Physical attributes
Height Not publicly stated
Weight Not publicly stated
JB (Jacob's Brother) was born to SWC-CC-C8327 on July 10, 1987. He is the possible father of Crocker, SWC-CC-B9527, Cookie, and Tiger. On May 4, 1996, JB joined Fabio and Pepe in their trip to SeaWorld Aurora. He met his brother Jacob and others as two more groups joined in 1997 and 1998. He died on March 9, 2000, just two days after his brother Jacob.

In 2018, Ceta Base confirmed that the sire of both Jacob and JB was, in fact, Juan.