The recent deaths of lions in Gir National Park were caused by the Canine Distemper Virus.

Option 1: Canine Distemper Virus - This is the correct answer. Canine Distemper Virus affects a wide range of animals, including dogs and wild carnivores such as lions. It spreads through respiratory secretions and can lead to severe illness, including respiratory and gastrointestinal symptoms.

Option 2: Nipah Virus - Nipah Virus is a zoonotic virus that primarily affects bats and pigs. It can be transmitted to humans and cause severe respiratory and neurological symptoms, but it is not the virus responsible for the lion deaths in Gir National Park.

Option 3: Hendra Virus - Hendra Virus is another zoonotic virus primarily found in horses and bats. It can infect humans and cause severe respiratory illness, but it is not associated with lion deaths in Gir National Park.

Option 4: Foot and Mouth Disease Virus - Foot and Mouth Disease (FMD) is a highly contagious viral disease that affects cloven-hoofed animals such as cattle, pigs, and sheep. It causes fever, blisters, and lameness but is not responsible for the lion deaths in Gir National Park.

In conclusion, the recent deaths of lions