original: Carolus Linnaeus and other scientists of his time also considered the great apes to be the closest relatives of human beings due to morphological and anatomical similarities.
simplifications: Carolus Linnaeus and other scientists thought great apes were humans closest relatives because they are so similar to us. Carolus Linnaeus and other scientists during that time thought great apes to be the closest relatives of human beings because of  morphological and anatomical similarities. Carolus Linnaeus and other scientists considered the great apes to be the closest relatives of human beings. This was due to their shape and structure. Carolus Linnaeus and other scientists of his time also thought the great apes to be the closest relatives of humans. This was due to morphological and anatomical similarities. Carolus Linnaeus and other scientists of his time also thought the great apes were the closest relatives of human beings. This was because of morphological and anatomical similarities. Scientists at the time thought that the great apes were most closely related to humans. This belief was largely due to similar body types. Carolus Linnaeus and other scientists thought great apes were the closest relatives of humans. Carolus Linnaeus and other scientists thought the great apes to be the closest relatives of human beings. They think this due to the morphological and anatomical similarities. Carolus Linnaeus and other researchers of the time thought the great apes to be close to humans due to having similar structures and anatomy. Carolus Linnaeus and other scientists of his time also considered the great apes to be the closest relatives of human beings. This is caused by the similarities of the form and body structure.