Male felidae gain weight and power when they become father ?

[sanjay]

Through out my observing, reading newsletter and other members information here. I am thinking that Male felidae like Tiger, Lion etc become more dominant , aggressive and gain muscle and weight when they become father first time. This is because they can protect their cubs, female and Territory.

According to JV - His male tiger Sariska who struggle to establish territory, dominated by other males and was smaller in size. But what interesting happened is when he was able to mate with a female and the female produces litters he became more aggressive. Male tigers that previously had dominated him, were now attacked when they came near his territory. Sariska bulked up and put on weight, giving him the edge when fighting other male tigers.

I have also observed to some extent in thread of Rofls, About father Male Tiger.

However, I am just putting my views here no any backup of data except the above JV's newsletter.
But this certainly open a debate on this behavior of animals and kind of interesting.
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