Assertion: tuatara's body | /r/HasAspect | blood
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Source sentences:
text: The tuatara could also be regarded as research-friendly: it is small enough to be manageable by hand, yet its body is large enough to enable the attachment of a radiotransmitter and to have blood or other tissues taken; it is not poisonous or particularly dangerous; and it lives for a long time, allowing for extended studies of the same individuals.