The tiger is one of wildlife's most endangered species, but there's one big cat which refuses to be tamed.

Meet Radamel Falcao -- or "El Tigre" as his friends nicknamed him after watching him terrorize defenders on the streets of Colombia as a child.

From making his professional debut at just 13 to running top-class defenders ragged, this is one Tiger who hasn't changed his stripes since bursting onto the scene in Europe with Porto and Atletico Madrid.

"I think that every person specializes in what they know best and as a young kid, I liked scoring goals," he told CNN.

"Later, I realized that's what I was best at and I went perfecting that aspect to give the best of myself to my team in the position I played, which was striker."

Constantly on the prowl for goals, the 26-year-old is one of football's most wanted transfer targets, with several top European clubs waiting to poach him from Atletico.

He moved to Spain in a €40 million ($53 million) deal from Porto in 2011, and scored 36 goals in his debut season in La Liga including two in the Europa League final against Athletic Bilbao.

His stunning hat-trick in the demolition of European champions Chelsea at the 2012 Super Cup Final underlined to those not au fait with Spanish football just how deadly he can be.

Falcao then went on a streak which saw him score in 11 consecutive games for club and country between August and late October.

With 18 goals in La Liga this season, the vultures are circling the Vicente Calderon once again, with Real Madrid, Chelsea and Manchester City all hovering.

But Falcao insists he is happy with life at Atletico and says he has no thoughts of moving on -- at least not yet.

"I have three years left on my contract with the club and my reality is that this contract ties me down for a few more seasons," Falcao said.

"Afterwards though, I don't know what's going to happen in the future as it's in the hands of the people responsible for deciding the future of the players on Atletico.

"I simply give the best of myself for the team, for this really good season that we're having. We have a lot of objectives/goals in our sight and I hope that we can achieve them."

Falcao has emerged as one of the world's top goalscorers since making the move to Porto from Argentina's River Plate in July 2009.

It was in Portugal that he came to prominence, scoring 34 goals including the winner in the final of the 2011 Europa League to help the club pull off a quadruple haul of trophies.

His goalscoring feats in the continent's second-tier competition, in which he scored a record 17 goals, earned him a move to Spain where he has led the line for Atletico with his predatory instincts causing havoc for defenses across Europe.

It is a skill which he honed as a youngster, spending many hours on the practice fields in a bid to perfect the art of one of football's hardest arts -- scoring goals.

Ever since he ran around the streets barefoot, covered with scratches and blood, Falcao's desire has been to reach the very top.

His father played club football in Colombia, and there was never a doubt in Falcao's mind what he wanted to achieve in life.