New protocetid whale from the middle eocene of pakistan: birth on land, precocial development, and sexual dimorphism.

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É Weverton com W

@o_weverton · X

Referências (de acordo com a ABNT - Associação Brasileira de Normas do Twitter) [1] https://t.co/dbZP686tCj [2] https://t.co/4seAtGAAo5 [3] https://t.co/QT0Z8ovLIW [4] https://t.co/zwpkv5unzk [5] https://t.co/sRaIfZ8s6T [6] https://t.co/wXOJh3arQI [7] https://t.co/dZUJHfhgzt

@christianmutaba @waitbutwhy These videos might be of help to you. https://t.co/euXzYonZcs https://t.co/kdzmw0KnPG https://t.co/BSucTcZBkV https://t.co/wmHFBKqhGx https://t.co/RIC7O9NrBn https://t.co/hxflhBFBcL

@SpanglishKrin @waitbutwhy Here you go. https://t.co/kdzmw0KnPG https://t.co/lBgOg7JvYg https://t.co/BSucTcZBkV https://t.co/wmHFBKqhGx https://t.co/RIC7O9NrBn

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Abdullah Gohar

@Gohar_A_S · X

https://t.co/84a83kyn11

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Neptune

@neptune_x8 · X

المصدر: https://t.co/cJBqhOMU6t

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UM Paleontology

@UMichPaleo · X

Honoring #MothersDay with Maiacetus, the "mother whale" who gave birth on land, as evidenced by discovery of a near-term fetus. Maiacetus' skeletal morphology supported its weight on land, backing the idea that protocetids were amphibious. #FossilFriday https://t.co/JMrEUiww5n

7 Incredible Times Land Animals Evolved Into Marine Mammals! https://t.co/K16fzUzy78

The Unbelievable Evolution of Whales & Marine Mammals https://t.co/XYkdIQJnhB via @YouTube Another to mystify the strawmen people

https://t.co/my1ipOdBjs

@CindyColbert @gunsnrosesgirl3 That whales evolved from a walking land animal has been proven. What you believe is irrelevant. The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/XSolePtXdw

https://t.co/2mbg4xdGv0

RT @shadowban_80647: @bot28771799 ヨーロッパが熱帯になるくらいの暑さの中、分厚い毛皮を失う種族もかなりいそう

@bot28771799 ヨーロッパが熱帯になるくらいの暑さの中、分厚い毛皮を失う種族もかなりいそう

@VioletIsABee @SwipeWright @DineshDSouza the earliest ceteceans (Pakicetus et al) show up around 50 million years... much like a furry crocodile. This is a bit technicall, but great illustrations. https://t.co/9kABTqVnPW

https://t.co/zBIz0TnaRU

@peterockstar @jamesabernard @learn_evolution @wendelltalks https://t.co/YVP5NdyM70

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Neptune

@neptune_x8 · X

المصدر: https://t.co/cJBqhOMU6t

@Sweetemmilyn @EvoIutlon Here’s some education for you https://t.co/5EBB4xLVoG

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UM Paleontology

@UMichPaleo · X

Honoring #MothersDay with Maiacetus, the "mother whale" who gave birth on land, as evidenced by discovery of a near-term fetus. Maiacetus' skeletal morphology supported its weight on land, backing the idea that protocetids were amphibious. #FossilFriday https://t.co/JMrEUiww5n

The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/ZLV2bDCdPZ via @YouTube Like my father,Aways said,In my previous life(and he remembers his previous life,maybe he also remember his next life,i don't know)He said->I was whale..So... my roots I guess...?

@GaelCasasart Don't know much myself but here are some good informative videos https://t.co/pm1BqJ6yOV

The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/k1HB02yV0r

RT @SirFowlman: @christianmutaba @waitbutwhy These videos might be of help to you. https://t.co/euXzYonZcs https://t.co/kdzmw0KnPG https://…

@Esquimantsic @dickfattinson @waitbutwhy These videos that were kindly shared with me for a starter: https://t.co/aDjmaeIgOV https://t.co/ZPPyggie3Z https://t.co/rFIu3RKLXk https://t.co/BRPmuBmtRu https://t.co/MCV8SOJyI5 https://t.co/APgDs6Y6BP Not science. A theory about what might have happened. It's like police work

@christianmutaba @waitbutwhy These videos might be of help to you. https://t.co/euXzYonZcs https://t.co/kdzmw0KnPG https://t.co/BSucTcZBkV https://t.co/wmHFBKqhGx https://t.co/RIC7O9NrBn https://t.co/hxflhBFBcL

@SpanglishKrin @waitbutwhy Here you go. https://t.co/kdzmw0KnPG https://t.co/lBgOg7JvYg https://t.co/BSucTcZBkV https://t.co/wmHFBKqhGx https://t.co/RIC7O9NrBn

@DinkySmack @foodguyrob @montanaro_debra @SnitchCrumby @aterkel this topic has been studied well, so if you think you know better that the biologists that have spent years of their lives studying animals, go ahead and try to find an alternative explanation. A quick explanation and a deep dive. https://t.co/gUKdsb73D8 https://t.co/FT3YktkyJo

@VenomPlatypus https://t.co/BN3teBccaA

The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/nUxFGwAzZZ via @YouTube

@SofaKingRock @qikipedia https://t.co/5npSwwh236 if you're curious

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ｶﾞｲｽ

@shitake_reverse · X

RT @TSAI_NTU508: On Father's Day, it suddenly occurred to me, and then I am wondering what the father of this baby Maiacetus was doing when…

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CH TSAI 蔡政修

@TSAI_NTU508 · X

On Father's Day, it suddenly occurred to me, and then I am wondering what the father of this baby Maiacetus was doing when the mother was giving birth: https://t.co/4rC1aq75Ls https://t.co/svbumzFowC

@rachel_simp01 @Dangarangatang @zizek_alt https://t.co/Rnr3n0SN1t

@dikkedidi https://t.co/U06tLhv7kR

@xvogelvaderx Mocht je het interessant vinden! https://t.co/U06tLhv7kR https://t.co/C04WskwCVk

The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/e0vA0Z34Qs

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Nigel Ten Fleming

@TenFleming · X

Precocial species have relatively mobile babies. https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“The presence of partially mineralized permanent first molars in the fetal skull indicates precocial development, which may have been a key life history trait in early whales facilitating the transition from land to sea." https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“This would have permitted birth of larger, more precocial infants, and we would predict that a near-term basilosaurid fetal skeleton, if found intact, would be positioned to be born tail-first as is seen in living whales.” https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

"Basilosauridae have reduced hind limbs that no longer contact the vertebral column and could not support the weight of the body on land. Hence they could no longer come out of the sea onto land to give birth." https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

"Birth at sea was a prerequisite for the first fully-aquatic whales, the Basilosauridae (including Dorudon) which evolved from Protocetidae later in the Eocene.” https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

Early archaeocete head-first birth. “This, in turn, indicates that birth almost certainly took place on land during this phase of early whale evolution." https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“Preservation of an intact near-term fetal skull and partial skeleton indicates that birth in early archaeocetes involved a single calf that was born head-first as in land mammals, not tail-first as in living whales.“ https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“Caudal presentation may also hold an advantage in water, because it orients the newborn calf to swim parallel to the mother rather than away from her." https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“Cephalic presentation at birth is generally held to be advantageous on land as it enables a newborn to breath during labor. Caudal presentation at birth, in contrast, is generally held to be advantageous at sea as it may reduce the risk of drowning.“ https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“Archaeoceti are basal cetaceans that document the evolutionary transition of whales from land to sea during the Eocene before the appearance of modern Mysticeti and Odontoceti." Wonderful figures of these transitional whale skeletons. https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

“Protocetidae are middle Eocene (49–37 Ma) archaeocete predators ancestral to later whales. They are found in marine sedimentary rocks, but retain four legs and were not yet fully aquatic.” https://t.co/jHypRzSeH7

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Nigel Ten Fleming

@TenFleming · X

Early protocetid whale fossils. “Specimens this complete are virtual ‘Rosetta stones’ providing insight into functional capabilities and life history of extinct animals that cannot be gained any other way.” https://t.co/KGm0ZTeD5o

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Nigel Ten Fleming

@TenFleming · X

Early protocetid whales gave birth. “This is consistent with skeletal morphology enabling Maiacetus to support its weight on land and corroborates previous ideas that protocetids were amphibious.” https://t.co/KGm0ZTeD5o

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Nigel Ten Fleming

@TenFleming · X

“Discovery of a near-term fetus positioned for head-first delivery provides important evidence that early protocetid whales gave birth on land.” https://t.co/KGm0ZTeD5o

https://t.co/jW3PbZJpoC

Evolution is a wild ride.

https://t.co/u6w4aGYUU5

@cathywilcox1 At other end of Earths living creatures scale - watching youtube of evolution of cetaceans - https://t.co/1RcMeEUjer #Whales

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Joel López Parés

@jovepaleontoleg · X

RT @Gohar_A_S: https://t.co/84a83kyn11

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Abdullah Gohar

@Gohar_A_S · X

https://t.co/84a83kyn11

RT @Mihael_999: @adrianturner01 @Renevelation Cows certainly didn't become whales, but if you are intrested in whale evolution, here's a gr…

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Andrey Sarmento

@AndreySarmento · X

RT @o_weverton: Referências (de acordo com a ABNT - Associação Brasileira de Normas do Twitter) [1] https://t.co/dbZP686tCj [2] https://t.c…

The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/jh1IUN4yA5 via @YouTube

https://t.co/HfJ1scsipA

RT @YDrgwyla: The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/TNdc6u1GBG via @YouTube

The Evolutionary History of Whales - Cetacean Evolution Part 1 https://t.co/TNdc6u1GBG via @YouTube

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Gabriel Gadsden

@NcredblyDopeSci · X

RT @UMichPaleo: Learn about how the discovery of Maiacetus, led by researchers from @UMichPaleo @MichiganEarth @UMichEEB, provided clues ab…

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UMich Ecology and Evolutionary Biology

@UMichEEB · X

RT @UMichPaleo: Learn about how the discovery of Maiacetus, led by researchers from @UMichPaleo @MichiganEarth @UMichEEB, provided clues ab…

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Michigan EARTH

@MichiganEarth · X

RT @UMichPaleo: Learn about how the discovery of Maiacetus, led by researchers from @UMichPaleo @MichiganEarth @UMichEEB, provided clues ab…

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UM Paleontology

@UMichPaleo · X

Learn about how the discovery of Maiacetus, led by researchers from @UMichPaleo @MichiganEarth @UMichEEB, provided clues about how whale reproduction changed as they returned to the sea. #OpenAccess in @PLOSONE: https://t.co/JMrEUiww5n https://t.co/WmfMbBI5je

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CAGUEEEEEI

@CAGUEEEEEI · X

RT @o_weverton: Referências (de acordo com a ABNT - Associação Brasileira de Normas do Twitter) [1] https://t.co/dbZP686tCj [2] https://t.c…

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Cogita Tuti

@CogitaTuti · X

RT @o_weverton: Referências (de acordo com a ABNT - Associação Brasileira de Normas do Twitter) [1] https://t.co/dbZP686tCj [2] https://t.c…

ÉW

É Weverton com W

@o_weverton · X

Referências (de acordo com a ABNT - Associação Brasileira de Normas do Twitter) [1] https://t.co/dbZP686tCj [2] https://t.co/4seAtGAAo5 [3] https://t.co/QT0Z8ovLIW [4] https://t.co/zwpkv5unzk [5] https://t.co/sRaIfZ8s6T [6] https://t.co/wXOJh3arQI [7] https://t.co/dZUJHfhgzt

I liked a @YouTube video https://t.co/6fveeVHWyM The Evolutionary History of Whales - Cetacean Evolution Part 1

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Rulon James Downard

@RJDownard · X

@Jesus_is_G_d @bubbacav85 @TertiusIII @TakeThatEpi @carlsmythe @tighe15 @StandBackUp2 @commonsensejan @michellmybell1 @rmbctious @ReviewResist @donholtmac @Cern_lXXl @Loriniowa @TedPerkins10 @LeannEAF @umfpt @Schmoop0521 @andyguy @MaryVMos1 @tklforgiven @geraldpayne25 @surgerysleeper @rorylane @rafearia @the_godparticle @RLBays @zythophiliac @feyeleanor @alan244g @phyzayo @funkydoolah @ScientiaPercept @2Cents69 @Mwforhr @omeagoz @Denbar64 @CollinOctantis @Kopernikus1966 @bobcat7000 @paulr140 @Pamiekp @TiSeven2 @CATGOD20 @delology @SteveTiger999 @amateurexegete Gingerich, Philip et al. 2009. “New Protocetid Whale from the Middle Eocene of Pakistan: Birth on Land, Precocial Development, and Sexual Dimorphism.” PLoS ONE (online @ https://t.co/sEVluXNxyc) 4 (February): e4366.