Why do stronger lions feel the need to dominate weaker ones?

What about their instincts tells them to do so? Are weaker lions still seen as a threat for some reason?

It's a thing that's quite common among different species. It's how perpetuation of the species works. The dominant males usually get first pick of viable females, so if it's always the stronger ones mating, future offspring benefit from superior genes. In other words, their instinct it telling them, "If I don't get that bitch pregnant, that weak ass lion will beat me to it!"

It’s mostly normal among many species.

If you don't dominate them they lose their place in the hierarchy, loosing opportunities to breed.

Woman love toxic masculinity. Especially in loins.

HAHA!

No regrets.

Juvenile Lions are independant after about the age of 2. At which point they work together in groups of up to 4 to catch prey.

Then they will work together to kill a Lion with an established pride. Then kill all the cubs. Then fight amongst themselves until a dominant lion emerges to control the new pride.

A Lion with a darker main indicates strength due to the extra heat absorbed by the darker colour.

Female lions are not picky.

[EDIT] African lion prides can have up to three adult males.

Asian lions divide themselves into two prides. The females have a pride and the males have a pride. They only come together during mating season.

There are only 175 mature asiatic lions remaining and they only live in the Gib forest in India.

https://www.livescience.com/27404-lion-facts.html

I just googled it.

In simian societies, females sneak off to do it with other none dominant males.

Regulate by Warren G and the late great Nate Dogg could provide some insight into aggressive male tendencies.

The runs throughout many species .

Weaker lions are seen as a threat to the gene pool. Nobody wants a beta messing up the community.