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The whale shark has been observed with both diurnal and nocturnal feeding habits. This change in behavior can be linked to times when the plankton they feed on blooms.
They are nocturnal
The Tasmanian tiger, more properly known as the Thylacine, is extinct. However, it was believed to be nocturnal.
Like most cats, they prefer the night and are so called nocturnal.
Giraffes are are diurnal
diurnal.
diurnal
Diurnal diurnal
diurnal
yes they are diurnal
diurnal
diurnal