NEWS: A study published highlights the unique communal nesting behaviour of the African grey foam‑nest tree frog, revealing how cooperation among multiple frogs enhances survival of offspring.

ABOUT

• Common Nameà African Grey Foam‑Nest Tree Frog.
• HabitatàTree branches overhanging pools in South Africa.
• Adaptationà Eggs laid in aerial foam nests rather than water.
• African Grey Foam Nest Tree Frog

Nesting Behaviour

• Foam Nest Constructionà Female secretes fluid; male and female mix it with hind legs into froth; nests built during rainy season (October–February).
• Eggs hatch inside; tadpoles drop into pool below.
• Cooperative Strategyà Often dozens of males join a female, creating nests up to three times larger, larger nests retain moisture longer, preventing egg dryness.
• Paternity Splità DNA testing shows multiple males father offspring in communal nests, ensuring survival of at least some offspring.
• SurfactantsàMale skin secretions suspected to contain compounds that stabilize bubbles, preventing collapse.
• Evolutionary Trade‑Offs – Large nests attract predators, spread diseases faster, and risk “cheater” females who lay eggs without contributing fluids.