Two women person been jailed for their portion successful a monkey torture ringing and behaviour described by the justice arsenic "depraved, sickening and wicked".
Adriana Orme, 56, from Upton upon Severn, and Holly Le Gresley, 37, from Kidderminster, antecedently admitted being portion of the planetary network.
Worcester Crown Court heard graphic details of the suffering experienced by young macaques successful Indonesia - with the footage sold to radical astir the world.
Le Gresley, who the justice said played a "leading role", was jailed for 2 years, portion Orme was handed a 15-month term.
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More than 130 videos and 22 images were uploaded by Le Gresley, who the tribunal heard had been an archivist, cataloguing and distributing immoderate of the footage.
She besides made a outgo to a PayPal relationship to promote cruelty.
Orme meantime pleaded blameworthy to publishing an obscene nonfiction by uploading 1 representation and 26 videos of monkey torture, and to having encouraged oregon assisted the committee of unnecessary suffering by making a £10 outgo to a PayPal account.
The women's roles were exposed aft a BBC probe into the network, which began beingness connected YouTube, earlier it moved to backstage groups connected the messaging app Telegram.
The online radical paid for babe long-tailed macaque monkeys to beryllium taken from their mothers and past tortured and killed.
Members adjacent voted connected projected methods.
A protestation took spot extracurricular the tribunal earlier the proceeding and carnal rights campaigners were allowed successful the gallery.
Jailing the women, Judge James Burbidge KC described their behaviour arsenic "deplorable, abhorrent and sadistic".
He said their offences went against immoderate consciousness of compassion and were "beyond comprehension for astir of society".
"You promoted the carnal torture of monkeys by others, you shared videos and images of specified torture and abuse, retained images and videos for what appeared to beryllium your ain pleasance and amusement," helium said.
He told Le Gresley she had "caused important pain, torture and decease to the monkeys successful Indonesia".
In all, constabulary recovered thousands of files from 20 devices owned by the women successful a year-long investigation.
Speaking aft sentencing, West Mercia Police described it arsenic a landmark case.
Det Ch Insp Ben Arrowsmith said it was the archetypal clip successful British ineligible past that "charges relating to carnal cruelty person been brought for offences that took spot abroad, wherever the offenders are successful the UK".
"The hatred and deviant fascination the defendants person shown successful narration to the cruelty and maltreatment towards monkeys is incomprehensible," helium said.
"The suffering the animals endured is sickening and sadistic; it's intolerable to comprehend however anyone could find it enjoyable."
The unit said some women had watched the videos, expressed delight astatine the images and regularly shared material.
Ch Insp Kevin Lacks-Kelly, caput of the nationalist wildlife transgression unit, said it was the worst cruelty helium had ever seen.
Despite this being the latest successful a bid of high-profile transgression cases, helium said that the "transnational investigation" into the planetary web was inactive ongoing.
In mitigation, Tom Walkling representing Le Gresley, said she had been surviving with the cognition of however she had behaved, had a agelong past of slump and anxiousness and was "likely to beryllium diagnosed with autism disorder".
The tribunal besides heard Le Gresley present believed she had post-traumatic accent upset from the videos.
Curtis Myrie, representing Orme, said she had respective carnal illnesses and described her arsenic "a loving parent and grandmother".
The tribunal besides heard however pre-sentence reports recognised however good she had cared for her rescue dog, Diesel.
'Beyond comprehension'
However, the justice disputed respective of the claims made by the defence teams and rejected their calls for suspended sentences.
He besides referenced Le Gresley's cognition of the jailhouse clip she could look if she was caught, based connected comments recovered by constabulary successful a chat.
After the hearing, Sarah Kite, from Action for Primates, who provided evidence, said: "The implicit deficiency of empathy some women showed for the panic and suffering of the monkeys, immoderate conscionable a fewer days old, is truthful disturbing.
"To wage for idiosyncratic to inflict specified unit is beyond comprehension."
US-based carnal rights radical Lady Freethinker, which besides helped way the planetary network, said the "horrors being inflicted connected innocent, babe monkeys for online videos are sickening".