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The endosymbiotic theory
contrast
Glaucus Atlanticus
by Carlos Gonzalez
Symbiogenesis, or endosymbiotic theory, is an evolutionary theory of the origin of eukaryotic cells from prokaryotic organisms.
Evolution
timeline of the evolutionary history of life represents the current scientific theory outlining ... A large extinction-event often represents an accumulation of smaller extinction- events that take place in a relatively brief period of time.
Glaucus atlanticus is a species of small, blue sea slug, a pelagic aeolid nudibranch, a shell-less gastropod mollusk in the family Glaucidae.
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Nudipleura
clade Nudibranchia
clade Dexiarchia
clade Cladobranchia
clade Aeolidida
Superfamily: Aeolidioidea
Family: Glaucidae
Genus:
Species:
The Glaucus atlanticus is a sea slog that means that the evolution of the is past ancient slugs .
Time line
millions of years ago
550- 500 355 50 5 present day
Aeolian
Aeolian
worms/ land slugs
crabs
glaucus
fish
opisthobranchs
primitive sea slugs
since the glaucus is part of a gastrpoda for the evidence of DNA similarities the evolution of is base in the sea slugs, in the pass the first sea slugs use to eat from the sea floor and just eating small thing.
vs
These sea slugs are pelagic: they float upside down by using the surface tension of the water to stay up, where they are carried along by the winds and ocean currents. makes use of countershading: the blue side of their body faces upwards, blending in with the blue of the water. The silver/grey side of the sea slugs faces downwards, blending in with the sunlight reflecting on the ocean's surface when viewed upwards underwater.
feed on other pelagic creatures, including the Portuguese man o' war and other venomous siphonophores. This sea slug stores stinging nematocysts from the siphonophores within its own tissues as defence against predators. Humans handling the slug may receive a very painful and potentially dangerous sting.
Adaptations
Although there are multiple adaptations that the Blue Glaucus has developed, there are five that are far more influential than the rest. One of the first adaptations noticed by people is the coloration. The blue and gray on the body create a phenomenon known as counter shading. This means that the slug camouflages with the water. Animals below it can not see it, and animals from above can't either.
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Another noticeable part of the Blue Glaucus is its venom. This venom is received from its prey, mainly the Portuguese Man o' War. Inside of the slugs body, it makes the venom even more potent and mixes it with venom from other prey. If necessary, it will sting foes with the venom via its cerata. This sting can potentially be deadly to a human.
The third adaptation is the air bubble inside of the Blue Glaucus' stomach. This is important as it keeps the slug afloat. This is necessary to allow it to find its floating prey and to keep it on the surface to allow counter shading.
Next is that it instinctively lies on its back. If it did not do this, counter shading would fail and the organism would be a sitting duck for predators.
Finally, it lays eggs on floating objects. This allows the baby slugs to develop their egg sacks and not fall to the bottom of the ocean. If they did not do this, the species would not exist, as this is critical in the reproductive process.
in the past the water was conformable for the glaucus, but they stay in the ground of the sea.
in the present they habit in tropical water and the surfaces of the water.
Like most nudibranchs, this species incorporates toxic chemicals or stinging cells from its prey into its own skin. This ability provides the blue glaucus with a defense mechanism against predation. ... The creature often floats on its backside, showing its brightly colored underbelly to airborne predators.
vs win
The blue dragon not only clings to the Portuguese man o’ war's tentacles, but can consume their toxic nematocyst cells and store them for later in little sacs to sting predators, the publication reported. This allows their own sting to be potentially even more intense than a Portuguese man o’ war.
so if the blue dragon is resistant to any toxin that can be presented in they environment...
i think that in the future they can hurt really a human
they use this
Glaucus atlanticus was recently found in the Humboldt Current ecosystem in Peru in 2013, and off Andhra Pradesh in India in 2012. This is in line with the known habitat characteristics of the species: they live in warm temperate climates in the Southern Pacific, and in circumtropical and Lusitanian environments.
https://en.wikipedia.org/wiki/Glaucus_atlanticus
https://mashable.com/2015/11/23/blue-sea-slug-australia/
https://www.smithsonianmag.com/science-nature/glaucus-atlanticus-science-picture-of-the-week-65306082/
https://upload.wikimedia.org/wikipedia/commons/thumb/2/21/Glaucus_atlanticus_1_cropped.jpg/220px-Glaucus_atlanticus_1_cropped.jpg
https://www.pinterest.com/pin/401383385520057167/
https://www.pbs.org/wnet/nature/files/2014/08/8599051974_ba27d12b7b_o-1024x768.jpg
https://www.pbs.org/wnet/nature/files/2014/08/7604b.jpg
https://www.pbs.org/wnet/nature/files/2014/08/7604b.jpg
https://upload.wikimedia.org/wikipedia/commons/thumb/b/bb/Devonianfishes_ntm_1905_smit_1929.gif/300px-Devonianfishes_ntm_1905_smit_1929.gif