Life Lines by Dr. Dolittle

Sponsored by the American Physiological Society


Extreme flight

May I have a drumroll please? The winner is…..the bar-tailed godwit!! *round of applause!!!!* The winner of what you may ask? This bird broke the world record for the longest non-stop flight – 7,500 miles – without the luxury of in-flight service. I bet it was hungry when it landed…

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Amazing dives

Researchers at Duke University recorded how long whales stay underwater during dives and made an impressive discovery. Some Cuvier’s beaked whales were capable of exceptionally long dives. While most dives were less than 78 minutes long, one animal performed a dive that lasted more than 3 hours! Interestingly, the recovery times from the dives did not appear to have a clear relationship with the dive duration. Researchers think these animals […]

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Getting louder costs more energy

Bats produce sounds to navigate their surroundings in a process called echolocation. The problem is that sound does not travel very well through air. To overcome this barrier, bats produce very high-intensity sounds. In fact, some bats can even produce sounds that are around 137 decibels sound pressure level (dB SPL), which is near the range that can cause hearing damage in people. Just like people, bats call at higher […]

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