Ikigai Daily
WonderColonial organism fact1,784 of 1,961

A siphonophore colony begins as one fertilized egg; genetically identical zooids later bud from it and specialize in movement, feeding, defence or reproduction.

The colony that behaves as a body

OceanBiologyEvolution

Why it matters

The idea in context

One larva develops from a fertilized egg, then produces zooids by budding as the colony grows. Each genetically identical unit follows a different developmental path and may be unable to survive alone: some propel, some sting and capture prey, some digest and some reproduce. The result unsettles the border between individual and collective—a single origin elaborated into animal units that function like organs.

Türkçe

Aynı kart, başka bir dilde.

Bir sifonofor kolonisi tek bir döllenmiş yumurtadan başlar; daha sonra tomurcuklanarak oluşan genetik olarak aynı zooitler hareket, beslenme, savunma ve üremede uzmanlaşır.
Beden gibi davranan koloni

Döllenmiş tek yumurtadan bir larva gelişir; koloni büyürken bu larva tomurcuklanmayla zooitler üretir. Genetik olarak aynı her birim farklı bir gelişim yolu izler ve tek başına yaşayamayabilir: kimi iter, kimi sokup av yakalar, kimi sindirir, kimi ürer. Sonuç birey ile kolektif arasındaki sınırı sarsar; tek köken, organ gibi çalışan hayvan birimleri hâlinde çoğalır.

Source trail

Read beyond the card.

Background reading: SiphonophoraeAttribution and context are revised when stronger evidence appears. Corrections are welcome through the editorial page.
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