Freshwater dolphins are some of the most unique mammals on the planet. Like bats, the dolphins use echolocation to forage for prey in the cloudy waters of the Orinoco and Amazon River basins.
Now, researchers are using their clicks, buzzes and squeaks to monitor the species' movement within its habitat.
Read More: River Dolphins Are Truly Unique and Disappearing
A new study published in Scientific Reports looked at two different species of freshwater dolphin, the Amazon river dolphin, also known as the boto, and the Tucuxi dolphin. The boto has a distinct pinkish hue and skinny snout and the Tucuxi is a mostly grey dolphin with a pink belly.
Experts suspect that about 50 percent of the dolphin population declines every 10 years. The population of the Tucuxi freshwater dolphin drops 50 percent every nine years. Models predict that the boto dolphins will be reduced by 95 percent within half ...
