Pygmy sperm whale significant concentration of magnetite crystals, which suggests that "K. breviceps" can navigate by magnetoreception. Studies have also shown that compared to the sperm whale, the pygmy sperm whale brain has significantly fewer neurons, which may be connected to a decreased complexity in social interaction and group-based living. Like all toothed whales, the pygmy sperm whale hunts prey by echolocation. Sound produced for echolocation by many odontocetes come in the form of high frequency clicks. The frequencies it uses are mostly ultrasonic, peaking around 125 kHz. The clicks from their echolocation has been recorded to last an average of 600 microseconds.
Red Earth, White Lies the greatest brain that our race has produced." Gordin concludes Deloria's rejection of the Bering land bridge and "attack on any affinity between Native tradition and Western culture and science" was derived from Velikovskian catastrophism, though Velikovsky himself rejected any hint of creationism. Red Earth, White Lies Red Earth, White Lies: Native Americans and the Myth of Scientific Fact is a book by Native American author Vine Deloria, originally published in 1995. The book's central theme is to criticize the scientific consensus which has, in his words, created "a largely fictional scenario describing prehistoric North America". The book's particular focus