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A Species in Decline

Across most of their range, elephant populations are in devastating decline. Learn about threats common to all.

Elephant Tails

Not long ago Ahmed, the huge male pictured below, sauntered into the clearing in the state of musth. Andrea was so excited, having not seen this guy for nearly ten years - where had he been wandering all this time? One of the biggest, and at 65 years old one of the oldest males in...

The Future

Thinking really BIG – dreams and challenges.

Where Are You?

Teasing out the secret of hidden vocalizations – location, location, location.

Elephants & Guns

Passive acoustic monitoring (PAM) is clearly one of the best methods to measure the intensity of illegal hunting in protected areas. Although in many areas hunting pressure is frighteningly high, actual gunshots are still relatively rare, making most other methods unsuitable. PAM allows for continuous monitoring over long periods and avoids all of the potential...

At The Core – ARUs

The heartbeat of acoustic monitoring.

Tools of the Trade

Technology is allowing us to monitor whole landscapes – and the voices of earth.

The Idea

Imagine a thick forest, so thick that only small parts of an elephant family can move around in a group, but the moms and daughters, separated by considerable distance, synchronize their movements by listening for one another's calls. Katy imagined studying these hidden behaviors by eavesdropping on their conversations. This was Katy Payne's insightful idea after she...

Help Us Save Forest Elephants

Eavesdropping on Elephants

INFRASOUND - why it matters Infrasound is sound that is below the threshold of human hearing. The figure to the right shows the frequency (or tone) for average humans when they talk, compared to a forest elephant rumble. Humans with very good hearing can just barely detect sounds at  20 Hz, but part of a typical...