Just in time to impress your family at dinner (or to divert them from the annual inquisition), here are some juicy turkey facts to have on hand...
1. The Jurassic Park centerpiece at your Thanksgiving table.
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| See it now? |
Like other birds, turkeys are descendants of dinosaurs. The
dinosaur on your Thanksgiving table is about 150 million years in the making,
branching off from their close relatives, the pheasant, about 11 million years
ago. So even if you’re served a dry bird this year, it may become more
palatable when you remember that it is a saurischian dinosaur, related to Tyrannosaurus
and Velociraptor.
Ben Franklin was a big admirer of the turkey. In fact, he favored the turkey over the bald eagle to be the US National Bird. He is quoted as saying, "For in truth, the turkey is in comparison a much more respectable bird, and withal a true original native of America" - more on that below...
2. Taming the turkey: how the turkey was won.
Wild turkeys (Meleagris
gallopavo) are indigenous to wilderness regions of North America and grew
to larger sizes after migrating to Central America where there were fewer
predators. About 800 BC, Olmec farmers in this region were the first people
believed to have used the turkey on a wide scale, harnessing the meat and eggs
for food and the feathers and bones for tools and decoration. By the time of
the Aztecs, who called the bird “huehxolotl”, the turkey was domesticated.
The
larger size of domesticated turkeys has severely compromised their ability to
run fast and fly like their wild turkey counterparts, which is another benefit
for the farmer since a turkey’s eyes are on the sides of its head. This ocular
arrangement coupled with a flexible neck gives the turkey a 360-degree field of
vision, good enough to spot a suspicious axe-wielding farmer lurking
nearby.
3. What does a turkey have in common with a peacock?
Male turkeys puff their feathers, strut and gobble loudly,
and fan out their tail like a peacock in an effort to win over a female
companion, who will produce up to 18 eggs per mate. The courtship rituals for
both turkeys and peacocks are risky, as these flamboyant displays may draw the
attention of predators (and TMZ). But this is how the ladies select their men –
they don’t have the benefit of DNA-based matchmaker sites to find suitable mates.
According to evolutionary psychologists, many species rely upon courtship
signals as a metric for strength and intelligence. If the male can produce such
a display and get away with it, he must be strong and smart enough to outwit
predators – those are genes that you would want in your pool.
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| Turkeys evolved to blend into the wilderness. Males, however, stand out when they fan their tail, gobble, and dance. Male turkeys do this to attract females, who have tails that are comparatively boring and speak with gentle clucks rather than obnoxious gobbles. |
4. The name “turkey” is based on a mistake.
5. Does eating turkey make you sleepy?
Some people have claimed that the tryptophan in turkey meat
makes us feel sleepy after Thanksgiving dinner. You can get the scoop on
tryptophan in a previous post found
here.
Contributed by: Bill
Sullivan, Ph.D.
Russo, E., Scicchitano, F., Citraro, R., Aiello, R., Camastra, C., Mainardi, P., Chimirri, S., Perucca, E., Donato, G., & De Sarro, G. (2012). Protective activity of α-lactoalbumin (ALAC), a whey protein rich in tryptophan, in rodent models of epileptogenesis Neuroscience, 226, 282-288 DOI: 10.1016/j.neuroscience.2012.09.021
Bruce KR, Steiger H, Young SN, Kin NM, Israël M, & Lévesque M (2009). Impact of acute tryptophan depletion on mood and eating-related urges in bulimic and nonbulimic women. Journal of psychiatry & neuroscience : JPN, 34 (5), 376-82 PMID: 19721848
Bruce KR, Steiger H, Young SN, Kin NM, Israël M, & Lévesque M (2009). Impact of acute tryptophan depletion on mood and eating-related urges in bulimic and nonbulimic women. Journal of psychiatry & neuroscience : JPN, 34 (5), 376-82 PMID: 19721848
