Who gains from saving nature
Ledger 1 : 33 — For each dollar financing nature-based solutions in 2023, about $33 financed activities harmful to nature. (UNEP)
Cases / Biotech, cloning and de-extinction · Argentina · 2010–2025

Kheiron Biotech expects to produce about 400 polo horse clones in 2025

Short record: the main facts, with sources. A full case file has not been prepared.

Nature's voice · report
No measurement of the harm done to me here is on record.
Did nature suffer? Not measured.
Not on record
  • The record does not name which of my species, waters, soils or forests were harmed.
What the record lacks: 2 none on record · 2 insufficient · 1 not measured See the gaps

Kheiron Biotech, an Argentine firm, sells cloned polo horses and told Gazeta do Povo/Reuters it expected about 400 clones in 2025. The sources do not connect the work to any conservation outcome.

What?
Kheiron Biotech clones polo horses in Argentina for sale. Gazeta do Povo / Reuters
Where?
Argentina. Gazeta do Povo / Reuters
When?
From the 2010 sale of a clone to 2025. Gazeta do Povo / Reuters
Who?
Gained
Lost
None on record
Harmed
None on record
Why?
Not stated in the sources reviewed.
How?
Cloning of polo horses, and CRISPR editing of five foals to suppress myostatin, as the report describes. Gazeta do Povo / Reuters
6 of 6 questions answered from the record

What happened

The record, in order.

Gazeta do Povo/Reuters reported in November 2025 that a clone of the polo mare Cuartetera sold for 800,000 dollars in 2010, and that the sale led to the founding of Kheiron Biotech.

Kheiron said it expected to produce about 400 clones in 2025, more than half of the cloned horses born in Argentina that year, and to sell them at an average of 40,000 dollars.

The report says Kheiron produced five foals edited with CRISPR to suppress the myostatin gene, which limits muscle growth.

Argentina's Polo Association has barred the edited horses from competition, while national rules do not separate cloned, transgenic and conventional horses.

    In court and with insurers

    Every proceeding and every insurer decision on record.

    Lawsuits and rulings

    No court case on record. No court has ruled on this case.

    Insurers

    No insurer decision on record.

    What we don't know

    Undisclosed, unproven, untried: recorded as data.

    Nature

    • Not measured Harm to nature: The record holds no measurement of harm to nature.

    Record

    • Insufficient Reported but not verified: Argentina's horse cloning rules are set by Decree 200/1997.
    • Insufficient Reported but not verified: the US firm ViaGen quotes 85,000 dollars for a horse clone.
    • None on record The 400-clone and 40,000-dollar figures are company statements, and the sources reviewed do not check them independently.
    • None on record Effects on horse welfare, animal health and any conservation outcome are not stated in the sources reviewed.

    Did the harm stop?

    Not stated in the sources reviewed.

    Who paid?

    Not stated in the sources reviewed.

    Sources

    Voices on record: — Company or project— Government and regulators— Courts✓ Press and investigations— Communities and civil society— Researchers

    Press and investigations

    1. Kheiron: polo horse clones and gene-edited foals
      Gazeta do Povo / Reuters · November 2025
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