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Merck Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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Hermann's tortoises, female and male
male_and_female_hermanns_tortoises_high
Hermann's tortoises, female and male

    Hermann's tortoises, the female (top) has a shorter tail and flat plastron, whereas the male (bottom) has a longer tail and more concave plastron. These dimorphic characteristics are common to many species of chelonians.

Courtesy of Dr. Stephen Divers.

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Overview of Reptiles

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using the power of leading-edge science to save and improve lives around the world.  The Merck Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues as the Merck Veterinary Manual in the US and Canada and the MSD Vet Manual outside of North America.

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