One way to investigate the record-setting deaths of the marine mammals is to perform autopsies on them, but researchers are also taking a close look at living whales for clues to what could be killing them.
Slideshow: Solving a Gray Whale Murder Mystery
Slideshow: Solving a Gray Whale Murder Mystery
One way to investigate the record-setting deaths of the marine mammals is to perform autopsies on them, but researchers are also taking a close look at living whales for clues to what could be killing them.
One way to investigate the record-setting deaths of the marine mammals is to perform autopsies on them, but researchers are also taking a close look at living whales for clues to what could be killing them.
For the past two years, the charismatic marine mammals have washed up on Pacific shores in record numbers. Scientists investigating the strandings suspect warming waters and melting sea ice are partly to blame.
The number of new babies is up from zero born last year, but scientists say the birth rate is still too low to sustain the population of endangered whales.
The Smithsonian National Museum of Natural History paleobiologist also studies the evolution of echolocation and special sensory structures in modern whales.