Why do animals understand they need to incubate eggs?

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I was watching this video recently (https://youtu.be/XAd1DlE7eaU) and in the first few minutes, he mentions something about the robin rotating the eggs under it so the heat distributes evenly. This make me really think.

How do these animals understand the incubation process? How can it understand something complex like knowing how often to rotate the eggs, or even comprehend it needs to rotate them in the first place? Does this suggest that knowledge is passed down through genetics?

In: Biology

6 Answers

Anonymous 0 Comments

Yes and no. It’s less like knowledge and more like programming. If you think that’s amazing, which you should, because it is, Consider how flowers “know” to open when the sun is out, or how they “know” to face the sun. Or, how does a bulb “know” to sprout when it’s wet, but only after a cold dormant period.

If certain bulbs such as crocus were to sprout when wet, they would die because they would use the energy stored in the bulb right before winter hit. Then when spring came and the sun and rain came with it, the flower would be devoid of energy or dead. Instead the bulb builds up all summer long, like a fat store. It won’t sprout, even if wet, until it goes through a cold cycle with a minimum temperature and time period. If you want to have the flowers in your home and grow them from a bulb. You have to do what horticulturists call “forcing”. You have to put the bulb in your refrigerator for a month or something then bring them out and put them in water. Then, they’ll spout. The more some people learn about the science behind how these things work the less they believe in a Creator. Personally, it’s always made me more in awe of a Creator and more likely to accept that this was not just random chance. Think about how beautiful a Narcissus or Crocus is and that it lives in a cold area. Consider that for that organism to survive it would have to, even if it evolved from something else already have had this survival strategy, combined with the survival strategy of attracting pollinators in it’s region.

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