Animal pregnancy period / dependency period / life span

[Wevin Crown]

Hello,

 

I'm interested in the relationship of the ratios of pregnancy length, amount of time before the infant is independent of the parent and the average life span.

 

For example, a dog is pregnant for 9 weeks, the puppy weens for 8-12 weeks, and then lives for 10-12 years.

 

Does anyone know which animals (humans included - i know it's difficult to decide when a child is independent from it's parents) have the longest/shortest pregnancy in relation to life span.

 

Also, which animal spends the most/least time dependent on it's parents in comparison to it's life span.

 

Thanks!

[ewmon]

1. The first point is to use standard terminology.
   
2. Google something such as gestation lifespan.
   
3. Find a website with data in tables like this one.
   
4. Copy and paste the whole table into a spreadsheet.
   
5. Replace cell contents with average values (round to whole numbers).
   
6. Create an XY (Scatter) chart of the data.
   
7. For best viewing of the data, use the log-log format.
   
8. Choose a trendline.
   
9. Display the trendline's equation on the chart.
   

Come back with any questions on how to do this.