Ὁ δὲ λεγόμενος παρ’ Αἰθίοψι κροκόττας μεμιγμένην μὲν ἔχει φύσιν κυνὸς καὶ λύκου, τὴν δ’ ἀγριότητα φοβερωτέραν ἀμφοτέρων, τοῖς δὲ ὀδοῦσι πάντων ὑπεράγει. πᾶν γὰρ ὀστῶν μέγεθος συντρίβει ῥᾳδίως, καὶ τὸ καταποθὲν διὰ τῆς κοιλίας πέττει παραδόξως. τοῦτο δὲ τὸ ζῷον τῶν ψευδῶς παραδοξολογούντων ἱστοροῦντες ἔνιοι μιμεῖσθαι τὴν τῶν ἀνθρώπων διάλεκτον ἡμᾶς μὲν οὐ πείθουσιν.
(Diodorus Siculus, Hist. 3.35.10)
The animal which the Ethiopians call the crocottas* has a nature which is a mixture of that of a dog and that of a wolf, but in ferocity it is more to be feared than either of them, and with respect to its teeth it surpasses all animals; for every bone, no matter how huge in size, it easily crushes, and whatever it has gulped down its stomach digests in an astonishing manner. And among those who recount marvellous lies about this beast there are some who relate that it imitates the speech of men, but for our part they do not win our credence.
* Probably a kind of hyena.
(tr. Charles Henry Oldfather, with his note)