Leopard:
Leopards are graceful and powerful big cats closely related to lions, tigers, and jaguars. They live in sub-Saharan Africa, northeast Africa, Central Asia, India, and China. However, many of their populations are endangered, especially outside of Africa.
Crocodile:
The Nile crocodile has a somewhat deserved reputation as a vicious man-eater. The proximity of much of its habitat to people means run-ins are frequent. And its virtually indiscriminate diet means a villager washing clothes by a riverbank might look just as tasty as a migrating wildebeest. Firm numbers are sketchy, but estimates are that up to 200 people may die each year in the jaws of a Nile croc.
Python vs Alligator - Python Bursts After Eating Alligator
https://www.youtube.com/watch?v=uDcBE85q5KM
Jaguar Attacks Crocodile 2015
http://www.youtube.com/watch?v=fJVFmP2Q0b0
The Biggest Snake in the World - Exclusive Video
http://www.youtube.com/watch?v=IK730qPNKek
Python vs Crocodile Fight - Python Kills Crocodile
http://www.youtube.com/watch?v=MPZI03pYdfA
Lion vs Bear Fight - Animal Face Off
http://www.youtube.com/watch?v=aqyglZcZhWI
2 Lion Attacks Leopard - Lion vs Leopard 2015
http://www.youtube.com/watch?v=mrEWRfZKZ7M
Lion vs Tiger Real Fight - One Will Die
http://www.youtube.com/watch?v=S4532wMWeZc
Lion vs Crocodile Real Fight - Who Win?
http://www.youtube.com/watch?v=awvMNjtRgg8