In a more pacific mode, elephants were employed across South Asia and Indo-China in the logging industry, felling and carrying and transporting teak, where they were trained and superintended by elephant boys, or mahouts, who established a lifelong relationship with their animals.

BBC: No white elephants in this herd

The Flex tracks your sleep quality as well, but the approach here differs from other Fitbit products: whereas the Fitbit One and Fitbit Zip have a key you can press to enter sleep mode, the Flex has no buttons at all, so your only recourse for logging sleep is to use the app or website.

ENGADGET: Fitbit announces the Flex wristband, a $100 fitness tracker to take on the Jawbone Up