Order cetacea
This presentation is the property of its rightful owner.
Sponsored Links
1 / 11

Order: Cetacea PowerPoint PPT Presentation


  • 66 Views
  • Uploaded on
  • Presentation posted in: General

Order: Cetacea. Whales, dolphins, and porpoises, oh my!. General Information. Fish? Mammal? Mammal! Why, they live in the water, right? Breathe air Give birth to live young Produce milk (nurse their young) Have hair Skeleton Bones or cartilage? Bones!

Download Presentation

Order: Cetacea

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Order cetacea

Order: Cetacea

Whales, dolphins, and porpoises, oh my!


General information

General Information

  • Fish? Mammal?

    • Mammal!

    • Why, they live in the water, right?

      • Breathe air

      • Give birth to live young

      • Produce milk (nurse their young)

      • Have hair

  • Skeleton

    • Bones or cartilage?

      • Bones!

      • Evolved around 33.7 – 23.8 million years ago from a quadripedal, terrestrial animal


General info cont d

General Info, cont’d

  • Respiration

    • Gills or lungs?

      • Whales breathe while moving through the water; they come up to the surface to exhale

        • There she blows! – Blow is the explosive exhale that we see in the form of a water spout

    • Voluntary or involuntary?

    • What happens when you go unconscious?

      • Whales don’t breathe when they go unconscious, so they suffocate and die


General info cont d1

General Info, cont’d

  • Movement?

    • How does a fish swim?

    • How does a whale swim?

      • The speed comes from the upward stroke of the tail, not the downward stroke!


Curious behaviors

Curious Behaviors…

  • Spyhopping

    • When the animal half-rises out of the water to see the surrounding areas

  • Lobtailing

    • Raising the flukes out of the water, then slapping the water’s surface

  • Acrobatics…

    • Jumping out of the water and general playing around


Suborder mysticeti

Suborder Mysticeti

  • The “Great Whales”

  • Also called Baleen Whales

    • Baleen: comb-like plates attached to the upper jaws; used like a filter to strain out food

  • Species include:

    • Humpback, Blue, Bowhead, Bryde’s, Cuvier’s Beaked, Minke, Pygmy, Right, Fin, Grey, Sei


Great whales

Cuvier’s Beaked Whale

Great Whales

Bryde’s Whale

Blue Whale

Minke Whale

Sei Whale

Right Whale

Pygmy Whale

Humpbacks


Suborder odontoceti

Suborder Odontoceti

  • The “Toothed” Whales

  • Number of teeth vary from 1 to approximately 240

  • Species include:

    • Dolphins ( marine/river), porpoises, pilot whales, beaked whales, bottlenose whales, sperm whales, narwhals, belugas and orcas (killer whales)


Toothed whales

Pygmy Sperm Whale

Irawaddy Dolphin

Toothed Whales

Bottlenose Whale

Beluga Whale

Marine Dolphin

Pink River Dolphin

Pilot Whale

Orca (Killer Whale)

Sperm Whale

Narhwal


Communication

Communication

  • Echolocation

    • Mysticetes use echolocation as communication (like whale songs!)

    • Odontocetes use echolocation as a navigation system (think dolphins….)


  • Login