They are pretty common in India. Not sure if they are the same species. Often found on street dogs and cows. When they are fat enough, they drop. But I haven't

They are pretty common in India. Not sure if they are the same species. Often found on street dogs and cows. When they are fat enough, they drop. But I haven't heard of any animal dying because of them. May be these guys produce too many babies. Was very surprised to read this!! What an invasive species can do suddenly!