Um... i can't think of an animal that doesn't meet the qualifications for a modern understanding of sentience. If we're regressing to an 18th century understanding of sentience, i'd argue that this might not be the case. But while we are waxing anthropocentrically,  there's no data to indicate that homo sapiens' "brand" of "sentience" would be "adopted" by another species. Sometimes we can be so caught up in ourselves, that we forget that there are species that may be MORE adaptive than humans. I don't need to remind you that we are not at the apex of some race to perfect adaptability. That's not what evolution is. The world is far to diverse - it is only our arrogance that allows us to pretend we, as a species, sit atop some throne. It's probably that arrogance that will be our undoing.