By Shannon Lane @shannonroselane

NATURE shows no mercy as a trapped baby wildebeest is approached by two hungry crocodiles

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The young wildebeest had no chance against the two crocodiles

The vulnerable calf got caught between two rocks as the herd crossed the Mara River, Tanzania.

One crocodile performs the infamous 'death roll'

German photographer Ingo Gerlach witnessed the dramatic scene from the other side of the river on March 16, 2017.

He said: "The calf was heading towards certain death. It was screaming for his mother, but she was sadly out of sight."

The crocodile grabs the wildebeest around its torso

Crossing the Mara River is part of the wildebeests' annual migration, where thousands of animals migrate to the greener pastures of the Maasai Mara National Reserve in Kenya from July to October.

The river crocodiles prey on the weak and young wildebeests

Wildebeest arrive at the Mara River in their tens of thousands, and gather waiting to cross, aware of the risks and dangers.

It is thought that up to 1.5 million wildebeest are believed to make the journey every year, and the river crocodiles lie waiting to snatch the weakest of the herd.

The young wildebeest got stuck between a few rocks

Ingo said: "As expected, a crocodile approached quickly and the calf's battle for survival began. It was an unequal struggle.

The wildebeest's death took a painful 30 minutes

"The first crocodile had settled on the calf's trunk as the second crocodile approached. The death of the wildebeest calf lasted about thirty minutes."