* No direct evidence: We don't have any recordings or physical evidence of language from early hominids.
* Evolutionary process: Language likely evolved gradually over a long period, not in a single "aha!" moment with one specific species.
* Multiple hominid species: Many different hominid species existed alongside our own ancestors, potentially with varying levels of communication abilities.
* Defining "language": Even defining what constitutes "language" is complex. Did early hominids have basic vocalizations, complex calls, or true grammar?
What we do know:
* Early hominids: Fossil evidence suggests that early hominids like *Australopithecus* and *Homo habilis* had brains capable of complex thought and likely some form of communication.
* Neanderthals: Neanderthals, who co-existed with *Homo sapiens* for a time, likely had sophisticated communication abilities, potentially even language.
* Modern humans: *Homo sapiens* clearly possess advanced language abilities, with complex grammar, vocabulary, and symbolic communication.
In conclusion: While we can't pinpoint a specific species, the development of spoken language was likely a gradual process that began with early hominids and continued throughout our evolutionary history.