Animal evolutionary researchers have found that reptiles and birds cry similar tears to humans.
Researchers in Brazil, at the Federal University of Bahia in Salvador, published their new study in Frontiers in Veterinary Sciencein 2020.
They collected samples of the tears of captive healthy animals in conservation centres. The tears were from seven species of reptiles and birds. The reptiles included tortoises, caiman lizards, and sea turtles. The birds included macaws, hawks, owls, and parrots.
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