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| Topic | Why do mammals give birth? Is giving birth better than laying eggs? |
| RescueBC 06/28/19 7:06:57 AM #5: | The offspring have the advantage of protection, better thermoregulation, etc while developing. Eggs are pretty much defenseless. And as JE19426 said, birthing is particularly difficult for humans. We walk upright and also have big heads where our big brains are kept. --- 3DS friend code: 5455-9623-0727 ... Copied to Clipboard! |
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