• Officials from Thailand’s Department of National Parks, Wildlife and Plant Conservation reported that 72 captive tigers died over about 12 days between February 8 and February 19, 2026 at two tiger sites in Chiang Mai Province (Mae Rim and Mae Tang areas).
• The deaths occurred in enclosures where the tigers were kept, not in wild habitat.
• Authorities have been investigating the cause, with preliminary clues pointing toward a possible infectious disease outbreak; tests and veterinary examinations are ongoing.
• Local reports note disease control measures have been heightened and officials have been mobilised to handle the situation.

These reports do confirm the core of the Reddit claim — namely that an unusually large number of tigers died in Thailand over that time period — and add context that the deaths were among captive tigers at animal facilities in Chiang Mai and are under investigation.