Here's what we know:
* Ligers are infertile: While they are born healthy and often live long lives, they are sterile. This means they cannot reproduce, making them a "dead-end" hybrid. This sterility is likely due to the different chromosome numbers of lions and tigers.
* Limited evidence of successful mating: There are extremely rare reports of ligers mating with other ligers, but these are anecdotal and not scientifically documented. The success rate of such pairings is unknown.
In summary: There is no established mating habit for ligers as they are typically unable to reproduce.
It's important to note that the creation of hybrid animals like ligers is a subject of ethical debate, as it raises concerns about animal welfare and the conservation of endangered species.