DALLAS - The Dallas Zoo now says the deaths of two of its giraffes were not related.
The two giraffes died in October. Augie was 19 years old, and Jessie was 14.
The zoo originally thought their deaths were connected because they died within a week of each other and both had high enzyme levels.
RELATED: Dallas Zoo says two recent giraffe deaths likely connected to toxin
Their caretakers made changes to the giraffe habitat and threw out food supplies because they suspected they might have ingested something toxic in their enclosure or feed.
But a panel of outside experts told the zoo Augie died of liver failure and Jessie had an inflamed colon.
Sadly, the Dallas Zoo also had to euthanize a baby giraffe in October after she suffered a severe leg injury.
RELATED: Dallas Zoo euthanizes 3-month-old giraffe after 'catastrophic injury'
Typically, giraffes in captivity live to be up to 25 years old.
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3-month-old giraffe dies at Dallas Zoo
The Dallas Zoo says a baby giraffe was euthanized after suffering a severe injury.