Evidence

Photographic evidence, video footage, and documentation from inside beagle breeding and testing facilities. Every image is sourced to its original publication. Sensitive content is blurred by default — click to reveal.

Methodology Caveat

All images on this page are published by the credited advocacy organizations and journalists. They are used here for educational and documentary purposes. Some images depict animal suffering and death. Sensitive images are marked and blurred until clicked.

Marshall BioResources — Whistleblower Photos (2024)

Anonymous whistleblower photographs from inside the North Rose, NY facility — the first public images from the world's largest beagle breeding operation. Published in three waves by Rise for Animals (Aug-Dec 2024) and separately by PETA.

Full Marshall evidence page →

Marshall BioResources (2024)

12 images

Rare photos from inside Marshall BioResources — the world's largest beagle breeding facility.

Rise for Animals / Camp Beagle

Dense rows of wire kennels inside Marshall

Rows of beagles in wire-floored enclosures. The facility houses approximately 23,000 dogs.

Camp Beagle whistleblower

Dogs housed over wire/mesh flooring in elevated enclosures.

Camp Beagle whistleblower

Interior corridor showing scale of the operation.

Camp Beagle whistleblower

The windowless interior described by Rise for Animals as 'a factory farm like you've never seen.'

Camp Beagle whistleblower

Sensitive contentClick to reveal

Beagles in tight-fitting inhalation masks — training for toxicology exposure studies. The 2024 image echoes the 1975 'smoking beagles' photograph.

Camp Beagle

Close-up of a beagle wearing an inhalation mask at Marshall BioResources.

PETA

Multiple beagles wearing masks simultaneously during acclimation training.

PETA

Beagles confined in barren kennels. Whistleblower photographs published June-October 2024.

PETA / Camp Beagle whistleblower

A mother beagle with her puppies inside a Marshall BioResources kennel.

PETA / Camp Beagle whistleblower

Sensitive contentClick to reveal

A puppy that 'had crawled into a container of wet food and died' — the whistleblower's description.

Rise for Animals / Camp Beagle

Sensitive contentClick to reveal

'A puppy lies dead in a feces-smeared bin.' — PETA caption.

PETA

Video: Beagles in Inhalation Masks at Marshall

Beagles trapped in inhalation masks at Marshall BioResources

PETA release (Oct 29, 2024) — video showing beagles wearing tight-fitting masks during inhalation toxicology acclimation training.

Credit: PETA

Marshall beagle mask training footage

Rise for Animals (Sep 18, 2024) — 'History Repeats' framing connecting 2024 mask footage to the 1975 smoking beagles.

Credit: Camp Beagle / Rise for Animals

Envigo — PETA Undercover (2021)

Photographs from PETA's 7-month undercover investigation at the Envigo beagle breeding facility in Cumberland, Virginia. The investigation triggered the largest AWA enforcement action in history.

Full Envigo investigation page →

Envigo / Inotiv (PETA 2021)

11 images

Envigo beagle breeding facility overview

Inside the Envigo beagle breeding facility in Cumberland, Virginia — documented by PETA's 7-month undercover investigation.

PETA

Conditions documented during PETA's 2021 undercover investigation.

PETA

Dogs housed at the Cumberland facility prior to federal intervention.

PETA

USDA cited inadequate flooring 'at every inspection conducted between July 2021 and May 2022.'

PETA

The facility housed approximately 5,000 dogs at peak capacity.

PETA

DOJ described a 'business culture that prioritized profit and convenience over following the law.'

PETA

300+ puppy deaths documented between January and July 2021.

PETA

The facility was shut down and 4,000 beagles were rescued in a 60-day operation.

PETA

Dogs identified by ear tattoo numbers. They never had names.

PETA

The $35M penalty was the largest in Animal Welfare Act history.

PETA

These dogs were destined for pharmaceutical toxicology studies.

PETA

Ridglan Farms — DxE Investigation (2017)

Documentation from the 2017 DxE undercover investigation that launched the 9-year campaign resulting in Ridglan's license surrender.

Full Ridglan investigation page →

Ridglan Farms (DxE 2017)

1 image

From the 2017 DxE undercover investigation at Ridglan Farms, Blue Mounds, Wisconsin.

Direct Action Everywhere / Right to Rescue

The Smoking Beagles (1975)

The photograph that launched the modern anti-vivisection movement.

Full historical context →

Historical Documentation

1 image

The iconic 1975 photograph by Mary Beith for The People newspaper — beagles wearing mask apparatus for forced inhalation of cigarette smoke. The image that launched the modern anti-vivisection movement.

Mary Beith / The People (1975)