Orca Whale

evolution

100

what did orca whales evolve from most recently

mysticetes

200

what did orca whales evolve from 2nd most recently

odontocetes

300

what did orca whales evolve from 3rd most recently

no name

400

what did orca whales evolve from 4th most recently

Ambulocetus

500

what did orca whales evolve from 5th most recently

Indohyus

habitat stuff

100

Where does this animal live?

all oceans

200

climet

coastal weather tends to be more moderate than continental weather, with fewer hot and cold extremes

https://www.google.com/search?q=ocean+climate&rlz=1CAJIKU_enUS1056&oq=ocean+cli&aqs=chrome.2.69i57j0i131i433i512l2j46i175i199i512l2j0i512l5.5669j0j7&sourceid=chrome&ie=UTF-8&safe=active&ssui=on#:~:text=https%3A//public.wmo.int/en/our%2Dmandate/focus%2Dareas/oceans/weather%2Dand%2Dclimate 

300

biome

wuter

400

food

Killer whales (also called orcas) are apex predators, meaning they are at the top of their food chain. They feed on fish and squid like other odontocetes (toothed whales) do, but will also target seals, sea birds and even whale species far bigger than themselves.

https://www.nhm.ac.uk/discover/quick-questions/what-do-killer-whales-eat.html#:~:text=Killer%20whales%20(also%20called%20orcas,species%20far%20bigger%20than%20themselves. 

500

preditors/pray?

they have no predictors and they like to pray on seals and penguins 

cladogram

100

What adaptations help orcas survive? structural

Thick layer of blubber for warmth. Can swim very fast (up to 30mph) to catch prey. Use echolocation (bouncing sounds off objects) in order to locate their positions and for hunting prey. Have sharp teeth up to 10cm long, to rip apart and chew their prey.

https://learn.clf.uk/wp-content/uploads/2020/06/Orca-Fact-Card.pdf 

200

What adaptations help orcas survive? behavioral

The greatest adaptation of the orca is to cooperate and hunt in groups called pods. They can hunt a wider variety of animals because of the adaptations of its teeth. Orcas adapted to swim up to 45 kph but usually swims at 13 kph. Orcas adapted to dive up to 100 m but usually don't dive deep.

https://www.sd81.bc.ca/aspire/?page_id=7841 

300

What adaptations help orcas survive? physiological

circulatory system helps maintain body temperature; it adjusts to conserve or dissipate body heat

400

cladogram

500

fossil record

anatomy

100

Compare the anatomy of your animal to another that has homologous structures.

The homologous structures of the killer whales fin and the wolf leg show similarities in bone structure. The structure of the whale jaw bone and the wolf jaw bone both again show similar structures.

https://prezi.com/azdn4jenv9lt/killer-whale-orca/#:~:text=The%20homologous%20structures%20of%20the,show%20similarities%20in%20bone%20structure.&text=The%20structure%20of%20the%20whale,both%20again%20show%20similar%20structures. 

200

Compare the anatomy of your animal to another that has analogous structures.

The structures are similar because they evolved to do the same job, not because they were inherited from a common ancestor. Fin of a fish and the flipper of a whale are analogous structures.

https://www.ck12.org/flexi/biology/comparative-anatomy/what-is-the-evolutionary-relationship-between-the-fin-of-a-fish-and-the-flipper-of-a-whale/#:~:text=The%20structures%20are%20similar%20because,a%20whale%20are%20analogous%20structures. 

300

Have at least 1 vestigial structures of your animal and why it/they can be considered vestigial

 orcas also have hip bones, which they don't use. And scientists think that this could be evidence that their ancestors used to have legs and live on land. These structures that used to have a function but don't anymore are called vestigial structures

https://onwildlife.org/killer-whales-orcas/#:~:text=orcas%20also%20have%20hip%20bones,anymore%20are%20called%20vestigial%20structures.