Post on 15-Jan-2016
Adaptations, Natural selection
Giraffe
Herds
Water contaminated with E. coli
• Long legs giraffe have diarrhea, while others have a funny smell in the urine symptom of urinary tract infections. All this symptoms of water contamination with E. coli.
• The short legs giraffe are tolerant to E Coli.
Short legs giraffe are resistance to the bacteria
• Those giraffe that have short legs are resistance to the bacteria.
• They mutated and that make them tolerant to it.
Long leg giraffe
• Some of the long legs get some mareola berries and they got better from the symptoms
• (flip a coin a coin to get better and survive).
Oxpecker and giraffe
• Giraffes have a symbiotic relationship with a few types of birds, most notably the oxpecker. These birds perch on the backs of giraffes, and alert them to possible predators.
• Play rock paper scissors to see if you get an Oxpecker.
TseTse Fly
• The giraffe must deal with the tsetse fly, which lands on them and sucks blood.
• Tsetse flies are also carriers of sleeping sickness, a dangerous disease to humans.
• Can giraffes get the sleeping sickness?
• Giraffes can use their powerful tails to swat the flies and get some relief from the TseTse.
• What kind of adaptation?
Mane Length SHORT
• If you as a giraffe have a Mane Length that is SHORT, your tail is not long enough to get rid of the Tsetse Fly…
• you will have the sleeping sickness…
San Antonio Zoo
• 2 Humans came in Looking for a 2 yellow Giraffes with blue eyes
• Be careful…they are already in the savanna!
• Before they transport the giraffe the humans cut out of 18 Acacia Nilotica 7 short Acacia nilotica to fulfill the needs of the giraffe on the way to the zoo.
Fire, Fire• The savanna 2 and 6
get on fire. • The giraffe needs to
migrate to the savannas that did not catch on fire…
• What kind of adaptation is this one…
Moving on… Careful
• but be careful…if you don’t have a Oxpecker with you… lion, hyenas and leopards are looking for food… you can die…
Hyenas, Leopards and Lions… journey to a new home…Fight or Run!!!
On the way to the new place
• Straight mouth that carry the gene for arthritis Giraffe have been seen eating the carcass of an antelope and chewing on dried bones for their calcium content.
• Dominant or recessive trait?
• Eating the bones is an adaptation? What kind?
Competition for food and water
• There are only 4 habitats for the giraffes in the African Savanna… only 10 tall trees on each… competition for food and water.
• Count the population on each habitat? Report it on the board.
• Count how many male and female survive…
Giraffe Hunter for…leather
• 4 hunters came in to the savanna to look for unique features for skin… taking a total of 4…
Rinderpest virus is back
• The virus is the rinderpest, which killed hundreds of giraffes in the 1880s (see 1890s African rinderpest epizootic) is back in the African Savanna.
• The virus appears and will kill half of the population…symptoms by fever, oral erosions, diarrhea, tenesmus, lymphoid necrosis.
• The survivors… develop immunity to the virus… Natural selection in action.
• What kind of adaptation is this?
• Can it be pass to the next generation?
• Natural selection in action.
• Look at the survivor and characteristics.