If you say strength, size, courage, ferocious.
A tiger holds more power than a lion and ranks as the strongest and heaviest among the big cats, yet no one calls a tiger a king.
Here are some weight facts for reference:
The Amur or Siberian tiger is the largest subspecies of the Panthera genus, known to weigh up to 360 kg, while large African lions weigh up to 250 kg. Average weight males is 181 kg for African lion, 221.2 kg for Bengal tiger and 230 kg for Siberian tiger.

Here are the reasons why lion in king.
1. Defending their Territories and Boundaries

Lions are social cats, they live in specific territories in a pride(
The Lionesses hunt the prey and feed the family while the male lion guards the territory from other foreign male lions.
2. Protecting their Family
A male lion protects its cubs from outside intruders. In doing so they

3. Their Survival Instinct
All the male juvenile lions have to leave their home pride at the age of 2–3 years to find their own. They travel hundreds of miles to invade a foreign territory, to do that they have to defeat that foreign territories protectors (male lions in that pride).

4. Pride Takeover
Every male lion must face a gruesome battle to claim new territory—a process known as the Pride takeover. Once after taking over a

Lions won’t tolerate the bloodline of other ones. The lioness tries to defend their cubs but sometimes they won’t even hesitate to kill the lioness too if it turns against.

5. Forming a New Pride
They mate with the females of occupied pride and start raising their cubs. And there comes a new family.

They roam in the nights defending their cubs, roaring and sending signals to other lions that it’s their boundary. They also have to pay the price if any enemy lion enters in their territory.
The chance of survival for the first 1–2 years of a lions life is all about the destiny. At the mercy of their

A male lion’s death during a pride takeover ranks among the most brutal in the animal world. He’ll fight to the death to protect his family—like a true king defending his kingdom.
So a male lion receives a lot of respect in their prime, they are the first one to eat the meal. Male lions rarely hunt, they generally come into the picture while taking down large preys like elephants, giraffes, rhinos, hippos.
Knowing all this, it’s clear why lions earn the title King of the Jungle. Being a king isn’t just about strength, courage, or dominance—it’s about commanding respect and embodying leadership in the wild.

Its more about protecting their own families.
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