《Natural History（9 自然史第9卷）》：

　　The legs of the glutton are not formed for running； he cannot even walk except slowly； but cunning supplies the deficiency of swiftness. He conceals himself to watch for his prey； and to seize it with greater security he climbs up trees， from which he darts even on the elk and rein-deer， and fastens himself so strongly with his claws and teeth on their backs that all their efforts cannot remove him. The poor animal thus attacked， in vain flies with its utmost speed， in vain rubs himself against trees， to obtain deliverance from this cruel enemy； all is useless； fastened on his back or loins the glutton persists in digging into his flesh， and sucking his blood， till the animal， fainting with loss of blood， sinks a victim to his tormentor， when the glutton devours his flesh with the utmost avidity and cruelty； and several authors affirm， that it is almost inconceivable the length of time he will continue eating， or the quantity of flesh he will devour.

　　The accounts of travellers are doubtless exaggerated； but if we even retrench a great part of their recitals， there will still remain sufficient to convince us that the glutton is much more voracious than any other beast of prey； and from this circumstance he has， not unjustly been denominated the quadruped vulture. He is more insatiable， and commits greater depredations than the wolf； and would destroy every animal， if he had sufficient agility， but he is reduced to drag himself heavily along； and the only animal he is capable of overtaking is the beaver， whom he easily destroys. He even attacks that animal in his hole and devours both him and his young， unless they get to the water， in which case the beaver escapes his enemy by swimming， for the glutton stops his pursuit to feed on the fish he can find. When deprived of living food， he goes in search of car cases， scratches up the graves， and devours the flesh of dead bodies.

　　Although this animalis subtle and uses every art to conquer others， he does not seem to have the least instinct for his own preservation. This indifference， which seems to shew imbecility， is perhaps occasioned by a different cause； for it is certain the glutton is not a stupid animal， since he readily finds means to satisfy his perpetual appetite； he does not want for courage， since he attacks every animal indifferently that comes in his way， and does not fly at the sight of man， nor even shew the least mark of fear. But this negligence for his own safety does not arise from an indifference for his preservation， but from a habit of security. He is almost a stranger to men， for being a native and resident of desart countries where they seldom come， when he does meet them， he has no reason to take them for enemies； besides， in every contest with other animals he is certain of conquest； and therefore he moves with confidence， and has not the least idea of fear， which supposes some foreproved misfortune， or some experience of weakness and inability. We have an example of this intrepidity in the lion， who never turns his back on man， at least till he has tried his strength； so the glutton traverses the snow， in his own desart climate， in perfect security. In those regions he reigns supreme， as does the lion in the forests and burning sands； and if not like him， from superior prowess， he is no less so from the weakness and timidity of those with whom he has to contend.

　　The isatis is not so strong， but much swifter than the glutton； he serves the latter as a purveyor， for the glutton follows him in his pursuit of animals， and often deprives him of his prey； for as soon as he approaches， the isatis， to avoid his own destruction， takes to flight， and leaves to his pursuer what he has not had time to devour. Both these animals burrow underground； but in every other habit they differ. The isatis will associate and often go in company； while the glutton always moves alone， or at most only with his female； indeed the male and female are frequently found together in their burrows. The most fierce dogs are averse from attacking the glutton， as he defends himself with his teeth and feet， and often mortally wounds them； but as he cannot escape by flight， when once beset it is not long before he is subdued.

　　The flesh of the glutton， like that of every other voracious animal， is very bad food. He is only hunted for his skin， which makes beautiful fur， not inferior to the sable and black fox. Some of them， when well-dressed， has a more beautiful gloss than any other skin， and is by no means inferior in appearance to a rich damask.

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