Lions and tigers are two different species ... Such hybrids are called tions and ligers. Do they challenge the definition of species? Not really. The key words are "interbreed successfully ...
A white lion flirted with a white tigress. And they had 4 baby ligers. Their romance was already strange. But they defied the rules of nature by having children. Ivory and Saraswati mated and had ...
Genetics doesn't work that way. Sure, similar species can breed. That’s how you get a liger (Lion+Tiger). But the Indoraptor isn’t like a liger. It’s a mix of a type of tyrannosaur and raptor.