loggerhead turtle vs Caretta caretta

loggerhead turtle and Caretta caretta both are nouns.

Word	Noun	Adjective	Verb	Adverb
loggerhead turtle	Yes	No	No	No
Caretta caretta	Yes	No	No	No

As nouns, loggerhead turtle and Caretta caretta are synonyms defined as:

loggerhead turtle and Caretta caretta: very large carnivorous sea turtle; wide-ranging in warm open seas

Other synonyms of loggerhead turtle include loggerhead.

loggerhead turtle (noun)	Caretta caretta (noun)
very large carnivorous sea turtle; wide-ranging in warm open seas	very large carnivorous sea turtle; wide-ranging in warm open seas