Tale of Two Teeth answer

Written by Tursiops. Posted in Uncategorized

Answer: Sperm whales are extremely sexually dimorphic – males grow much larger than females.

At 33.5’, a female sperm whale is near her full adult size, an old whale.

At 33.5’, a male sperm whale is a youngster, only approximately half his full size.

Therefore, the smaller tooth was from the male.  The female had the larger tooth because she was much older.  The photos below show the 2 whales from which the two teeth were taken.

tale teeth sperm whales

Tale of Two Teeth quiz

Written by Tursiops. Posted in Cetacean Studies

Here’s a quiz:  The two teeth in the picture below are from two different 33.5’ sperm whales (Physeter macrocephalus) that stranded in North Carolina.  Both teeth are a #10 (10th from the front) tooth from the lower jaw.  Why do you think there’s such a size difference between the Pm 33.5 teeth M&Ftwo teeth?  Check back tomorrow for a hint.

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