Dramatic photographs released by the Wildlife Conservation Society show the final moment of a Sambar deers life following a leopards devastating attack.

The large deer may have weighed anywhere from 440 to over 600 pounds, the Wildlife Conservation Society (WCS) said. The deer are four times larger than the leopards that hunt them.

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Motion-activated cameras captured the scene last week, which occurred in the Bhadra tiger reserve in India. Researchers use camera traps like these to estimate the population size of leopards and tigers, as scientists can use a cats distinctive coat patterns to identify it. They can then use the data they gather to better understand the population dynamics of the species, and help conserve it.

In fact, the WCS reports that both the leopards and the Sambar deer which the International Union for Conservation of Nature labels as near threatened and vulnerable respectively are actually rebounding, following conservation efforts.