Technically no.
The jaguar is often described as nocturnal; but is more specifically crepuscular which means that its peak activity is around dawn and dusk but not all night long.
It rests most of the day and night.
Sabertoothed tiger
The real scientific name for sabertoothed tigers of all ages was smilodon.
They are nocturnal
NO!
The Tasmanian tiger, more properly known as the Thylacine, is extinct. However, it was believed to be nocturnal.
Yes. The Tasmanian tiger, more correctly known as a Thylacine, was nocturnal. The Thylacine, now extinct, was a marsupial, and the vast majority of marsupials are nocturnal and/or crepuscular.
The Tasmanian Tiger, more correctly known as the Thylacine, was semi-nocturnal. Whilst it did most of its hunting at night, it was also active during the day.
There were many kinds of sabertoothed cats, and they varied in size from that of a large house cat to that of a tiger or lion, and some were even bigger. The classic saber toothed "tiger" is called Smilodon and the South American species could weigh up to 500 kgs!
sabertoothed tigers.
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.
Tigers are considered to be crepuscular, meaning they are most active during dawn and dusk. However, they can also be active at night, making them partially nocturnal.
Like most cats, they prefer the night and are so called nocturnal.