Order Cetacea by Sarah Tecce https://padlet.com/st716/order_cetacea Whales, dolphins and porpoises en-us 2017-05-23 15:44:02 UTC 2017-06-01 01:40:16 UTC hello@padlet.com st716 https://padlet.com/st716/order_cetacea/wish/173656387 2017-05-24 15:42:43 UTC https://padlet.com/st716/order_cetacea/wish/173656387 Habitat st716 https://padlet.com/st716/order_cetacea/wish/173729931
  • Commonly found in cold waters like Pacific northwest, Norway's coast and southern coast
  • Usually found in open waters
  • Able to venture into tropical waters
    • ]]>     2017-05-24 23:27:28 UTC https://padlet.com/st716/order_cetacea/wish/173729931     Taxonomy for Killer Whale st716 https://padlet.com/st716/order_cetacea/wish/173730102 Kingdom: Animalia
    Phylum: Chorodata
    Class: Mammalia
    Order: Cetacea
    Family: Delphinidae
    Genus: Orcinus
    Species: orca]]>     2017-05-24 23:30:01 UTC https://padlet.com/st716/order_cetacea/wish/173730102     Taxonomy For Bottlenose Dolphin st716 https://padlet.com/st716/order_cetacea/wish/173730968 Kingdom: Animalia
    Phylum: Chorodata
    Class: Mammalia
    Order: Cetacea
    Family: Delphinidae
    Genus: Tursiops
    Species: truncatus]]>     2017-05-24 23:37:04 UTC https://padlet.com/st716/order_cetacea/wish/173730968     Taxonomy for Harbour Porpoise st716 https://padlet.com/st716/order_cetacea/wish/173731188 Kingdom: Amimalia
    Phylum: Chorodata
    Class: Mammalia
    Order: Cetacea
    Family: Phocoenidae
    Genus: Phocoena
    Species: phocoena ]]>     2017-05-24 23:39:09 UTC https://padlet.com/st716/order_cetacea/wish/173731188     Habitat st716 https://padlet.com/st716/order_cetacea/wish/173731343
  • Live in temperate and tropical waters world wide
  • Live in the Pacific and Atlantic cean
  • Can be found in coastal or open waters
  • Also found in the Mediterranean and Red Sea
    • ]]>     2017-05-24 23:41:40 UTC https://padlet.com/st716/order_cetacea/wish/173731343     Habitat st716 https://padlet.com/st716/order_cetacea/wish/173731354
  • Found in salt water and fresh water
  • Live in temperate and subarctic waters
  • Live in North America's Atlantic and Pacific coast, bays, harbors, estuaries and large rivers
    • ]]>     2017-05-24 23:41:48 UTC https://padlet.com/st716/order_cetacea/wish/173731354     Characteristics st716 https://padlet.com/st716/order_cetacea/wish/173731377 External
    • The body's are black and white with a grey patch on the back, behind the dorsal fin
    • They have pectoral fins, a dorsal fin and flukes
    • The skin, known also as dermis, is smooth and is continually renewing itself
    Internal
    • Skeleton is long and thick. Killer whales only contain the skull, ribs, bone structure of the front fins and a back bone 
    ]]>     2017-05-24 23:42:08 UTC https://padlet.com/st716/order_cetacea/wish/173731377     Characterisitics st716 https://padlet.com/st716/order_cetacea/wish/173731393 External
    • Skin color is gray to dark gray on the back, fading to white on the lower jaw and belly
    • Well- defined rostrum (snout-like projection)
    • Average length: 6.6-12.8ft
    • Average weight: 331.5-442 lb
    Internal
    • Retia Mirabilia: Tissue that helps with quick change in blood pressure when diving
    • Three chambered stomach
    • Two kidneys with multiple renules
    ]]>     2017-05-24 23:42:19 UTC https://padlet.com/st716/order_cetacea/wish/173731393     Characterisitics st716 https://padlet.com/st716/order_cetacea/wish/173731407 External
    • Average length: 5-6 ft
    • Average weight: 200 lb
    • The back is very dark gray or dark brown, fading to lighter gray on the sides; belly is white
    • Dorsal fin is broad based, low and triangular
    Internal
    • 4 chambered heart
    • Bones in back, skull, ribs and front fins
    ]]>     2017-05-24 23:42:28 UTC https://padlet.com/st716/order_cetacea/wish/173731407     Behavior st716 https://padlet.com/st716/order_cetacea/wish/173731417
  • They travel in pods (5-30 whales)
  • Often work together to catch the food
  • Feed on fish, squid, birds and marine mammals
  • To hunt, killer whales use echolocation which is the use of sound waves and echoes to determine where objects are 
  • Not strictly nocturnal or diurnal
    • ]]>     2017-05-24 23:42:34 UTC https://padlet.com/st716/order_cetacea/wish/173731417     Behavior st716 https://padlet.com/st716/order_cetacea/wish/173731434
  • Swim in groups of 2-15 individuals
  • Rely heavily on sound production
  • Eat a wide variety of fishes, squids and crustaceans
  • Not strictly nocturnal or diurnal
    • ]]>     2017-05-24 23:42:45 UTC https://padlet.com/st716/order_cetacea/wish/173731434     Behavior st716 https://padlet.com/st716/order_cetacea/wish/173731439
  • Live in a group of 3 
  • Usually eat small schooling fish and cephalopods
  • Mate every 2 years
  • Not strictly nocturnal or diurnal
    • ]]>     2017-05-24 23:42:50 UTC https://padlet.com/st716/order_cetacea/wish/173731439     Biochemistry st716 https://padlet.com/st716/order_cetacea/wish/173731752 Lipids
    • Blubber is rich in fats and oils
    • Trigacylglyerols: highly concentrated stores of metabolic energy
    Protein
    • Myoglobin: stores oxygen that is found in the muscle
    ]]>     2017-05-24 23:46:48 UTC https://padlet.com/st716/order_cetacea/wish/173731752     Anatomy and Physiology st716 https://padlet.com/st716/order_cetacea/wish/173731787
  • All share pectoral fins, flukes, a dorsal fin, a blowhole and teeth
  • The bone structure only consists of a backbone, a skull, ribs and front flips
  • The blubber helps to maintain heat in cold water
  • Muscle tissue is able to store oxygen while diving
  • The tail is used for moving through water
  • All share a 4 chamber heart, lungs, kidneys and intestines
    • ]]>     2017-05-24 23:47:15 UTC https://padlet.com/st716/order_cetacea/wish/173731787     Chromosomal Analysis st716 https://padlet.com/st716/order_cetacea/wish/173731811 Number of Chromosomes
    • Killer Whale: 44
    • Bottlenose Dolphin: 44
    • Harbour Porpoise: 44
    The number of chromosomes show that these three organisms are closely related. All three of them have 44 chromosomes. Similar characteristics are in the result of similar chromosomes. This is why the three organisms look similar to each other.
    ]]>     2017-05-24 23:47:38 UTC https://padlet.com/st716/order_cetacea/wish/173731811     Type of Speciation: Gradual st716 https://padlet.com/st716/order_cetacea/wish/173731865 Gradual speciation is when a species slowly but steadily diverges and develop new traits. Whales, dolphins and porpoises were once land mammals. Over time, they lost their limbs for flippers because the food source because aquatic.]]> 2017-05-24 23:48:21 UTC https://padlet.com/st716/order_cetacea/wish/173731865 Type of Evolution: Convergent st716 https://padlet.com/st716/order_cetacea/wish/173731892 Convergent evolution is when organisms that are not closely related, but appear similar. Whales, dolphins and porpoises have similar homologous skeletal structure in their flippers. They also have a similar body shape with benefits them in swimming and hunting for food. ]]> 2017-05-24 23:48:37 UTC https://padlet.com/st716/order_cetacea/wish/173731892 Descent with Modification st716 https://padlet.com/st716/order_cetacea/wish/173731958 Descent with modification is a theory that newer fossils are changed descendants of previous organisms. Whales, dolphins and porpoises use to be land mammals. Over time, these land mammals became aquatic and new fossils support this change. ]]> 2017-05-24 23:49:04 UTC https://padlet.com/st716/order_cetacea/wish/173731958 Type of Natural Selection: Directional st716 https://padlet.com/st716/order_cetacea/wish/173731980 Directional evolution favors one extreme trait over another. In whales and dolphins, they are both colorblind to help see prey that is camouflaged. The eyes are also on the side of their heads to help protect against the current. ]]> 2017-05-24 23:49:18 UTC https://padlet.com/st716/order_cetacea/wish/173731980 st716 https://padlet.com/st716/order_cetacea/wish/173732312 2017-05-24 23:54:23 UTC https://padlet.com/st716/order_cetacea/wish/173732312 st716 https://padlet.com/st716/order_cetacea/wish/173732519
  • https://seaworld.org/en/animal-info/animal-bytes/mammals/killer-whale/
  • https://seaworld.org/en/animal-info/animal-bytes/mammals/bottlenose-dolphin
  • http://www.nationalgeographic.com/animals/mammals/h/harbor-porpoise/
  • http://species-identification.org/species.php?species_group=marine_mammals&menuentry=soorten&id=118&tab=classificatie
  • http://science.jrank.org/pages/1355/Cetaceans-Anatomy-physiology.html
    • ]]>     2017-05-24 23:57:31 UTC https://padlet.com/st716/order_cetacea/wish/173732519     Embryology st716 https://padlet.com/st716/order_cetacea/wish/173904177 2017-05-25 20:58:46 UTC https://padlet.com/st716/order_cetacea/wish/173904177 st716 https://padlet.com/st716/order_cetacea/wish/173905708 2017-05-25 21:11:17 UTC https://padlet.com/st716/order_cetacea/wish/173905708 Phylogenetic Tree st716 https://padlet.com/st716/order_cetacea/wish/174703186 This phylogenetic tree is of odontocetes. Odontoceti is a group of Cetacea comprising of toothed whales. This tree is showing how these toothed whales are related to each other.  ]]> 2017-05-31 20:41:15 UTC https://padlet.com/st716/order_cetacea/wish/174703186 st716 https://padlet.com/st716/order_cetacea/wish/174707783 2017-05-31 21:24:12 UTC https://padlet.com/st716/order_cetacea/wish/174707783 st716 https://padlet.com/st716/order_cetacea/wish/174710044 (Embryo of a killer whale)]]> 2017-05-31 21:44:19 UTC https://padlet.com/st716/order_cetacea/wish/174710044 st716 https://padlet.com/st716/order_cetacea/wish/174710128 (Embryo of a dolphin)]]> 2017-05-31 21:45:04 UTC https://padlet.com/st716/order_cetacea/wish/174710128 st716 https://padlet.com/st716/order_cetacea/wish/174710377 Similarities
    • Both are developing a tail, a head, the flippers and eye sockets/eye balls
    Differences
    • The killer whale's head is rounded while the dolphin has a snout and the head protrudes
    ]]>     2017-05-31 21:47:03 UTC https://padlet.com/st716/order_cetacea/wish/174710377     st716 https://padlet.com/st716/order_cetacea/wish/174711354 Taxonomy gives information about how a species is related. If a species is related in family, then they are very closely related. If a species is related in kingdom, they may or may not be related since kingdom is a broad group. ]]> 2017-05-31 21:58:23 UTC https://padlet.com/st716/order_cetacea/wish/174711354 Random Mating st716 https://padlet.com/st716/order_cetacea/wish/174718622 Killer whales and bottlenose dolphins have multiply partners during a reproductive season. Dolphins mate throughout the year but usually at the peak of spring and fall. Whales mate near the equator because of the warmer water. ]]> 2017-05-31 23:43:34 UTC https://padlet.com/st716/order_cetacea/wish/174718622 Microevolution st716 https://padlet.com/st716/order_cetacea/wish/174720922 When these mammals became aquatic, they still had their hind limbs. In a short period of time, they lost the hind limbs for tails because the tails were more useful for swimming and hunting. ]]> 2017-06-01 00:13:08 UTC https://padlet.com/st716/order_cetacea/wish/174720922