| 31. | Monotremes, egg-laying mammals, lay soft-shelled eggs similar to those of reptiles.
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| 32. | "Radio Protector " was released as a 7 " single in February 2006 on Monotreme Records.
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| 33. | Monotremes and marsupial moles are the only mammals in which the penis is located inside the cloaca.
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| 34. | Mammalian females bear live young ( with the rare exception of monotremes, which lay eggs ).
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| 35. | The only orders of mammals that are known to demonstrate electroception are the dolphin and monotreme orders.
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| 36. | Porcupines'spiny protection resembles that of the unrelated erinaceomorph hedgehogs and Australian spiny anteaters or monotreme echidnas.
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| 37. | Echidnas evidently evolved between 20 and 50 million years ago, descending from a platypus-like monotreme.
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| 38. | Understanding the evolution of such a system may have implications for solidifying the true ancestral lineage of monotremes.
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| 39. | The monotreme we saw everywhere is the echidna, a little quilled animal who looks something like a porcupine.
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| 40. | However, the five species of monotreme, the platypus and the four species of echidna, lay eggs.
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