Cattle Mutilation:
- Wallas oliveira
- 3 days ago
- 4 min read
What is the phenomenon of cattle mutilation?
Cattle mutilation is the term used to describe the discovery of animals, mainly cattle, found dead with unusual and seemingly precise injuries. Cases often involve the removal of specific body parts, such as the eyes, tongue, udder, reproductive organs, and areas around the jaw.
The phenomenon gained notoriety in the United States during the 1970s, but similar reports had already been recorded in several countries previously.
How does it happen? How do cattle appear mutilated without anyone noticing any strange activity moments before?

The case that caught the attention of the United States.
One of the best-known episodes occurred in 1967 in the state of Colorado , involving a mare named "Lady." The animal was found dead with cuts considered strange for the time, becoming one of the first cases widely publicized by the press.
In the following years, hundreds of similar occurrences began to be reported in states such as Colorado, Nebraska, New Mexico, Wyoming, and Montana.
How many cases have been registered so far?
Determining an exact number is difficult due to the absence of a unified national database.
However, official investigations conducted in the United States have recorded thousands of reports since the 1970s.
During the wave of incidents between 1975 and 1979 alone, state authorities received more than 10,000 complaints related to possible cattle mutilations.
Most cases occurred in rural areas of the western United States.
Main characteristics observed
The most frequent reports include:
Absence of obvious signs of struggle.
Soft tissue removal from the face.
Eye removal.
Partial or total absence of language.
Removal of the sexual organs.
There is an apparent lack of blood around the carcass.
There is little predator activity in the first few hours after death.
These characteristics have helped fuel numerous theories over the decades.

The FBI investigation
Between 1979 and 1980, the FBI analyzed several cases of animal mutilation in conjunction with local authorities.
After reviewing documents, interviews, and field evidence, the agency concluded that there was no concrete proof of an organized criminal conspiracy, military intervention, or extraterrestrial activity.
The report indicated that many cases could be explained by:
Natural predators.
Post-mortem decomposition.
Insect activity.
Environmental phenomena.
The role of predators and decomposition.
Veterinary researchers have observed that natural decomposition can produce surprising effects.
When an animal dies:
Soft tissues are the first to be consumed.
Insects attack moist areas such as the eyes, mouth, and genitals.
Skin retraction during drying can create edges that resemble surgical incisions.
Blood can pool internally due to gravity, giving the impression that it has been removed.
Several veterinary studies have shown that many injuries considered "mysterious" can appear naturally during the first few days after death.

Are cases still occurring?
Yes.
Reports continue to be filed in different regions of the United States, Canada, Argentina, Brazil, and the United Kingdom.
In 2019, for example, several cases were reported in the state of Oregon, reigniting the debate about the causes of mutilations.
Despite this, no modern investigation has been able to produce verifiable evidence of extraterrestrial origin or unknown technologies.
Main theories
Predators and natural decomposition
This is the most widely accepted explanation within the scientific community. Several veterinary studies indicate that natural processes are able to reproduce a large portion of the observed characteristics.
Human action
Some investigators suggest that certain cases may involve vandalism, rural insurance fraud, or isolated criminal acts.
Government experiments
A popular theory since the 1970s, but without proven evidence.
Extraterrestrial hypothesis
The most famous theory among the public. Proponents point to the apparent precision of the injuries and reports of strange lights near the locations. However, to this day there is no scientific evidence to support this hypothesis.
Famous cases of cattle mutilation
Year | Local | Details |
1967 | Colorado, USA | The case of the mare Lady |
1975 | Colorado, USA | Beginning of the great wave of reports |
1979 | New Mexico, USA | Expanded federal investigation |
2019 | Oregon, USA | Five bulls found dead under unusual circumstances. |
2023 | Texas, USA | Cases involving cows with facial tissue removal have generated national attention. |
And today?
Cattle mutilation remains one of the most controversial phenomena in modern livestock farming. Although thousands of cases have been recorded over the past few decades, most scientific investigations point to natural causes involving decomposition, insects, and predator action.
Nevertheless, some episodes remain without a definitive explanation, fueling debates among researchers, authorities, ranchers, and enthusiasts of anomalous phenomena. The result is a mystery that, even after more than half a century of records, continues to arouse curiosity around the world.










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