# Adelaide Zoo's Cassowary Eggs Prove Breeding Success

> Adelaide Zoo's cassowary birds lay fluorescent green eggs after 34 years of failed attempts.
- Title: Adelaide Zoo's Cassowary Eggs Prove Breeding Success
- Summary: Adelaide Zoo's cassowary birds lay fluorescent green eggs after 34 years of failed attempts. Adelaide Zoo's southern cassowary Martina laid two fluorescent…
- Keywords: southern cassowary, adelaide zoo, cassowary breeding, fluorescent eggs, conservation program, zoo wildlife, news, local, Adelaide, Zoo's, Cassowary, Eggs
- Source: Seattletimes — https://seattletimes.com/nation-world/australian-zoo-plays-matchmaker-for-giant-birds-and-big-green-eggs-are-proof
- Read time: 1 min
- Topics: southern cassowary, adelaide zoo, cassowary breeding, fluorescent eggs, conservation program, zoo wildlife, news, local
## Martina and Jeffrey
Adelaide Zoo's southern cassowary birds Martina and Jeffrey successfully bred after 34 years of failed attempts.

> It’s the first cassowary egg at the zoo in 34 years.
## Egg Production
Martina laid two fluorescent green eggs, the first at the zoo in 34 years, with a third possible by Thursday.

> Martina, 10, could lay a third egg on Thursday.
## Breeding Challenges
Southern cassowaries, the heaviest birds in Australia, are solitary and dangerous with a large claw on their toe.

> They’re solitary creatures.
## Conservation Efforts
Breeding requires a conservation plan approved by a zoo association and observing the birds' behavior.

> The birds, which are the heaviest in Australia, can be dangerous if you put yourself in their space.
## Next Steps
Jeffrey will incubate eggs for 50 days, with staff testing viability through blood samples if needed.

> Incubation time is about 50 days, the zoo said.
## Key takeaway

Adelaide Zoo's southern cassowary Martina laid two fluorescent green eggs, the first in 34 years, after a successful breeding attempt with partner Jeffrey.