To many, the killer whale, also known as orca, is considered the panda of the sea (a not-so-cuddly black and white ocean beast). Whale scientists have been particularly busy over the last 20 years studying the killer whale and we now know a whole lot about this species or, as it turns out, possibly several species.
The mystery surrounding the deaths of at least 877 dolphins in Peru deepened as the government said human activity was not to blame but failed to pinpoint a natural cause for the massive die-off.
Nearly 900 dolphins that washed up along Peru's northern coast since the start of the year died of natural causes, a top official said Tuesday, citing a government report.