the question is:
How old are Chinstrap Penguins when they die in the wild????
I don't want any fresh answers like, I don't care about things like that, mostly about mortgage and stuff like that. I'll report you if you're fresh!!!!
2007-02-20 07:34:40 · 3 answers · asked by mcgonagleman 2 in Science & Mathematics ➔ Zoology
actually i need it like 2-22-07 please no later
2007-02-20 07:37:18 · update #1
For most species, the average lifespan is 15-20 years although some individuals live much longer.
2007-02-20 07:44:35 · answer #1 · answered by Mark B 5 · 0⤊ 0⤋
In the wild there haven't been any reliable long term studies of individual penguins that can tell how long they live. The only such study was carried out in the 1940's and 50's by Lance Richdale in New Zealand. He monitored a population of Yellow-eyed penguins over a 15 year period. Certainly there were some chicks that he saw hatch that survived through most of the study; so it is reasonable to put the lifespan of Yellow-eyed penguins at 15 years or more. The only other information comes from studies on captive birds. Zoos and aquaria often know how old their birds are when they die. However, the common causes of death in captivity (Avian Malaria and Aspergillosis) are not particularly prevalent in the wild so the experiences with captive birds are probably under-estimates. On the other hand the captive birds will not suffer starvation if fish stocks go down suddenly and they have no predators (such as leopard seals and killer whales) to kill them. Anyway, zoos reckon birds live 10 to 20 years depending on species, with the larger species generally being longer lived.
2007-02-20 15:50:24 · answer #2 · answered by lost in space 6 · 1⤊ 0⤋
they live to be between 12and25 years
2007-02-20 15:42:10 · answer #3 · answered by The Child 2 · 0⤊ 0⤋