### species:

Jellyfish specie
* All Jellyfish species have tentacles which is where their stingers are.
* Most jellyfish species do better with the same species in one tank
  - have a relatively fixed life span
* Some jellyfish species are kept in aquariums.

Keystone specie
* are critically important to others in the community
  - important in regulating ecosystems
* help maintain ecosystem stability.
* support the stability of the ecosystem mainly in three ways.

Large specie
* Many large species are also as sensitive to UV-B as the small celled species.
* Some large species have cannibalistic behavior
  - live up to several years and move to larger water bodies to overwinter
* are capable of inflicting serious bites
  - often difficult to transplant because of the deep tap root
* tend to have longer incubation periods than small species.

Mammal specie
* Many mammal species are elusive and shy
  - have very distinctive tooth shapes
  - move freely between types while others are restricted to specific habitats
* are mammals excluding whales and porpoises.
* occupy wide ranges of Earth surface.

### species:

Mammalian specie
* All mammalian species have two biological forms - female and male
  - lose bone with age, but only humans fracture
* Many mammalian species deposit various odors when they are alarmed.
* Most mammalian species have between ten and fifteen types of Toll-like receptors.
* excrete the pathogen in their urine and serve as reservoirs for transmission.
+ Toll-like receptor, Extended family: Cell biology
  * Most mammalian species have between ten and fifteen types of Toll-like receptors. TLRs are not identical in all mammals. For example, a gene coding for a protein like TLR10 in humans is present in mice, but seems to have been damaged at some time by a retrovirus. Other mammals may express TLRs that are not found in humans. Non-mammalian species may have TLRs different from mammals.

Marigold specie
* Many marigold species are self-seeding, which means the seeds they release grow into new plants.
* Some marigold species are edible.

### species:

Marine specie
* Many marine species enter waters in the ballast water used to stabilize ships
  - show a patchy distribution
  - spend their early lives as larvae traveling in open water
  - use a technique called counterillumination to protect themselves
* Most marine species are hosts to one or more parasites
  - have large ranges
* are affected by global warming in numerous other ways
  - also more vulnerable than biologists once believed
  - most diverse around coral reef systems such as the Great Barrier Reef
  - often more sensitive than the freshwater species
  - usually benthic
* find many ways to travel to a new environment.
* have veliger larvae.
* provide a large percentage of humans' protein supply.
* tend to be larger than freshwater species.

Mexican specie
* Some Mexican species are endemic to very restricted places within the country.
* contain steroids.

Migratory specie
* Many migratory species tend to return to the same breeding grounds year after year.
* can also cover tremendous distances.
* occupy both breeding and nonbreeding habitats.
* pose additional difficulties when determining sources of exposure.
* return to summer in the North.

Mosquito specie
* Many mosquito species live through the winter as adults.
* Most mosquito species prefer humid, dark and warm places to reside and reproduce.
* Some mosquito species are predatory and feed on other mosquitoes during the larval stage
  - die during winters but many hide and wait for the warmth to set in
  - do things differently
* use the wetlands and ponds as breeding grounds.

Mycoplasma specie
* Most mycoplasma species are susceptible to clindamycin.
* are one example and they are very wide spread.
* differ from bacteria in that they are very small and lack a cell wall.