Love for nature.
I love to know names of plants in my vicinity. Today's generation cannot even identify a simple mango tree.
School syllabus for Medical stream in highschool
Bio in class 11 and 12 ,forces us learn plant botanical names.. Which increases are craze towards them. This is also usually time when we come across these sites.
Fear of animals
Big Animals are not so common in cities. (Mostly city people use such sites). So, I dont ask about them. And often animals are dangerous and mobile, while plants are harmless. Its easier to take their photo and ask about it.
Food
Half the people in world live to eat, other half have to eat to live.
May be being Vegetarian also contributes towards it(Slightly on me😜).
I was talking to my mother yesterday about difference in spinach and raddish leaves. We eat leves of both. Then, we came to conclusion, if, we find simillar other leaves our society would start eating that too and makes a nice religious folk of that too.
Since, here vegen is a a major part of our food, evolutionary we are destined to gain more and more knowledge of it.
If we find something new plant outside, our limbic system will start its evaluation for diet.