feline health

Cats Survived the 1918 Flu. Here Is the Biological Proof.

Cats survived the 1918 flu because the virus could not bind to their cells. Historical records prove they remained healthy while humans died. Here is the biology behind their survival.

Why Your Cat's Heart Murmur Is a Lie: The Physics of Flow Sounds

A cat heart murmur is not a diagnosis. It is a sound created by turbulent blood flow. Learn why a loud murmur in a healthy cat is often a benign flow murmur, not a heart defect.

The Scottish Fold's Ear Cartilage: Why the Fold Mutation Carries a Genetic Cost

The Scottish Fold's cute ears are caused by a genetic mutation that attacks the cat's entire skeleton. Learn why the fold carries a painful, lifelong health cost.

The Cat's Third Eyelid: What the Nictitating Membrane Actually Signals

A visible third eyelid in cats is rarely an eye problem. It is a passive signal that the globe has retracted, pointing to systemic illness, dehydration, or neurological disruption. Here is what the nictitating membrane actually tells you.