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The Ruby Throated Hummingbird has a resting heart rate of 250 beats per minute. When it is threatened or chased, it's heart rat...Asked by Please help!
The Ruby Throated Hummingbird has a resting heart rate of 250 beats per minute. When it is threatened or chased, it's heart rate can reach 1200 beats per minute. Predict its lifespan and justify your explanation.
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Answered by
drwls
There are many animal species that seem to have an average life span of about 1 billion heartbeats. Birds and humans included.
See
http://www.beholders.org/mind/scienceandfacts/124-1billionheartbeats.html
for more about that.
Hummingbirds don't spend a lot of time resting. I'd expect an average heart rate of 500 b.p.m. At that rate, one billion beats would take 4 years.
That happens to be the observed average life of that bird species. Some have lived 12 years.
See
http://www.beholders.org/mind/scienceandfacts/124-1billionheartbeats.html
for more about that.
Hummingbirds don't spend a lot of time resting. I'd expect an average heart rate of 500 b.p.m. At that rate, one billion beats would take 4 years.
That happens to be the observed average life of that bird species. Some have lived 12 years.
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