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Siamese Crocodile sleeping with its mouth open to pant
Oral cavity: (A) sagittal section; (B) anterior view as seen through the open mouth.
Open heart surgery
Capuchins use stones to crack open palm nuts in much the same way that chimpanzees in some populatio
In the Tai Forest a female chimp demonstrates a skill once thought to be unique to humans. Here she
Survey of conserved nucleotides in E. coli promoters