(Reblogged from farewell-kingdom)
(Reblogged from gluestick)
(Reblogged from scientificillustration)
aycarambas:

Medusa chromolithograph

aycarambas:

Medusa chromolithograph

(Reblogged from scientificillustration)
meta-apathy:


The developmental stages of scyphozoan jellyfish’s life cycle:
1–3 Larva searches for site4–8 Polyp grows9–11 Polyp strobilates (strobilation is a form of asexual reproduction consisting of spontaneous transverse segmentation of the body.)12–14 Medusa (adult jellyfish) grows.


Another unusual species, T. nutricula, falsely reported as Turritopsis dohrnii, might be effectively immortal because of its ability under certain circumstances in the laboratory to transform from medusa back to the polyp stage, thereby escaping the death that typically awaits medusae post-reproduction if they have not otherwise been eaten by some other ocean organism . So far this transdifferentian of life form has been observed only in the laboratory and it is not known if it actually occurs in wild Turritopsis populations. 


From Schleiden M. J. “Die Entwicklung der Meduse”. In: “Das Meer”. Verlag und Druck A. Sacco Nachf., Berlin, 1869. 

meta-apathy:

The developmental stages of scyphozoan jellyfish’s life cycle:

1–3 Larva searches for site
4–8 Polyp grows
9–11 Polyp strobilates (strobilation is a form of asexual reproduction consisting of spontaneous transverse segmentation of the body.)
12–14 Medusa (adult jellyfish) grows.

Another unusual species, T. nutricula, falsely reported as Turritopsis dohrnii, might be effectively immortal because of its ability under certain circumstances in the laboratory to transform from medusa back to the polyp stage, thereby escaping the death that typically awaits medusae post-reproduction if they have not otherwise been eaten by some other ocean organism . So far this transdifferentian of life form has been observed only in the laboratory and it is not known if it actually occurs in wild Turritopsis populations. 

From Schleiden M. J. “Die Entwicklung der Meduse”. In: “Das Meer”. Verlag und Druck A. Sacco Nachf., Berlin, 1869. 

(Reblogged from scientificillustration)
(Reblogged from scientificillustration)
scientificillustration:

Jellyfish by BioDivLibrary on Flickr.
Icones rerum naturalium :.Hauniæ [i.e., Copenhagen] :Ex officina Mölleri,MDCCLXXVI [1776]..biodiversitylibrary.org/page/41360639

scientificillustration:

Jellyfish by BioDivLibrary on Flickr.

Icones rerum naturalium :.
Hauniæ [i.e., Copenhagen] :Ex officina Mölleri,MDCCLXXVI [1776]..
biodiversitylibrary.org/page/41360639

(Reblogged from scientificillustration)
(Reblogged from adventures-of-the-blackgang)
Octopus toy (via pinktentacle)

Octopus toy (via pinktentacle)