Cheetahs originating from the Southern Hemisphere are biologically programmed to grow thick winter coats during June and July, corresponding to the austral winter.

Caveats

• No peer-reviewed primary study directly confirms a hardwired thick winter coat growth cycle in cheetahs; the supporting evidence comes from secondary news reports about a specific translocation crisis in India.
• The claim's 'biologically programmed' framing overstates what the evidence shows — the highest-authority cheetah research (PubMed Central) emphasizes flexible photo-responsiveness rather than a fixed biological program.
• The claim narrows the timing to June–July, but reports indicate the coat thickening spans June through August or September, and cheetahs inhabit diverse climates across the Southern Hemisphere where seasonal patterns vary significantly.