### animal | cnidarian:

Anthozoan
* are all marine and are found all over the world, in various sizes and habitats
  - coelenterates
  - colonial or solitary organisms
  - often colonial having the polyp body plan with no alternation with the medusa form
  - sisters to all other cnidarians
  - the familiar anemones and corals
* differ from other Cnidaria in that they have no medusoid stage.
* exist as solitary or colonial, and mostly sessile polyps.
* have no alteration of generations
  - medusa stage and are often colonial
* often provide fish and crustaceans with habitat and food scraps.

### animal | cnidarian:

Hydra
* can move from one location by gliding or even somersaulting
  - perform observations of the brighter sampling of stars
* can reproduce either sexually or asexually depending on conditions
  - themselves by making another, smaller hydra
* has opening to fluid compartment, but small opening
  - three cell lineages, which are all self-renewing and maintained by stem cells
  - two distinct methods of reproduction, asexual and sexual
* is attracted to food, moderate light and moderate temperatures
  - classified as a 'ring' nebula
  - composed of a mouth, gastric cavity, and a foot process
  - famous for being one of the twelve labors of Hercules
  - filled with abundant life in the summer
* is one of the easiest islands to get to from Athens
  - simplest of the metazoa
  - part of such animals
  - represented by several species in the different parts of the world
  - reproduced by the process of budding
  - sensitive to light and seeks out a suitable illumination
  - transparent, jelly-like and with tentacles
* reproduce asexually by budding
  - in a process called budding
* reproduces both asexually and sexually
  - sexually and asexually

Hydroid
* Most hydroids are found growing on or among seaweeds.
* are actually colonies of polyps growing on a common stalk
  - plant-like animals
* form distinctive colonies during the spring in harbors, on floats and in rocky areas.

### animal | cnidarian | hydroid:

Siphonophore
* Most siphonophores have a different arrangement of polyps.
* are a type of hydrozoan with a float for buoyancy
  - among the most prevalent predators in midwater habitats
  - groups of creatures that live, connected, as one animal
  - hydrozoans that form drifting colonies of polyps
  - multicellular AND colonial
* can make independent motions.
* come in a fantastic diversity of forms and many are bioluminescent.

Hydrozoan
* All hydrozoans alternate between a polyp, and a medusa phase of living.
* Most hydrozoans are colonial.
* also tend to be smaller than other species of jellies.

Jellyfish
* Some Jellyfish have sticky harpoons and others wrap their harpoons around their prey to trap it.
* can live a wide variety of ages
  - survive up to few hours or few months
* is the common name of a type of sea animal that biologists call a medusa
  - quintessential pop band
* major part of the diet of the leatherback turtle.

### animal | cnidarian | jellyfish:

Box jellyfish
* Most box jellyfish cause significant pain
  - exist in oceans
* Most box jellyfish find in coastal water
* Most box jellyfish have enough venom
  - long tentacles
  - predators
* Most box jellyfish rely on tentacles
  - venomous tentacles
* Some box jellyfish find mates.
* Some box jellyfish have brains
  - eyes
  - squares
* are also prevalent during the summer months.
* cause pain
* have a square-shaped float with tentacles streaming from the corners of the bell
  - no gills or breathing organs
  - the unfortunate distinction of being feared as extremely lethal creatures
* produce venom.
* survive months.

Different jellyfish
* Every different jellyfish has a different number of tentacles.
* have babies in different ways.