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no. They are both prehistoric whales but they are different species.
no. They are both prehistoric whales but they are different species.
When whales walked on all fours
The ocean's largest animals' forebears previously walked on land. Follow them on their incredible adventure from coast to sea.
Whales, although being great swimmers and completely adapted to life underwater, used to walk on four legs.
Their land-dwelling forefathers lived approximately 50 million years ago.
Meet Pakicetus, a goat-sized, four-legged creature recognized by scientists as one of the first cetaceans (the group of marine animals that includes dolphins and whales).
One of the most fascinating evolutionary journeys known to science is that of Pakicetus' ancestors evolving into whales.
What were the first whales like?
Pakicetus (seen above) had no resemblance to a whale, but it would have felt at home in the water. It existed on land, among lakes and riverbanks in what is now Pakistan and India.
It hunted small terrestrial creatures as well as Freshwater Fish, and it could even hear underwater.
This animal's relatives eventually travelled further into the ocean and adapted to cope with their new habitat.
Into the sea
Ambulocetus was the name given to one of these relatives. Around 50 to 48 million years ago, it resided in or near estuaries.
It spent time in and out of the water like Pakicetus, but its huge feet resembled flippers rather than its ancestor's larger legs. It also swam by using its tail.
Dorudon, which lived 40 to 33 million years ago, is found further down this evolutionary path.
This five-metre-long creature has functional flippers and tiny hind legs. It spent its entire life in the sea and was an excellent swimmer. It also gave birth to its offspring while submerged.
Cetaceans had totally adapted to living in the sea within 10 million years, from the time of Pakicetus to the time of Dorudon. That may seem like a long period, but in evolutionary standards, it is quite quick.
Whales that lack teeth
Dorudon's descendants went on to evolve into contemporary whales.
A group of whales began to evolve a new style of eating some 34 million years ago. Their heads were flatter, and they had feeding filters in their mouths.
These are known as baleen whales, and they include blue and humpback whales.
Other whales, such as dolphins, porpoises, orcas, and sperm whales, preserve their teeth.
Here is a short list of transitional fossils:
Cladoselache
tristychius
ctenacanthus
paleospinax
spathobatis
Protospinax
Acanthodians
cheirolepis
mimia
Canobius
Aeduella
Parasemionotus
Oreochima
leptolepis
Osteolepis
Eusthenopteron
Sterropterygion
tiktaalik
panderichthys
Elpistostege
Obruchevichthys
Hynerpeton
Acanthostega
Ichthyostega
Pholidogaster
Pteroplax
Dendrerpeton acadianum
Archegosaurus decheni
Eryops megacephalus
Trematops
Amphibamus lyelli
Doleserpeton annectens
vieraella
Proterogyrinus
Limnosclis
Tseajaia
Solenodonsaurus
Hylonomus
Paleothyris
Captorhinus
Petrolacosaurus
Araeoscelis
Apsisaurus
Claudiosaurus
Planocephalosaurus
Protorosaurus
Prolacerta
Proterosuchus
Hyperodapedon
Trilophosaurus
Coelophysis
Deinonychus
Oviraptor
Lisboasaurus
Archeopteryx
Sinornis
Ambiortus
Hesperornis
Ichthyornis
Paleothyris
Protoclersydrops
Clepsydrops
Archaeothyris
Varanops
Haptodus
Dimetrodon
Sphenacodon
Biarmosuchia
Procynosuchus
Dvinia
Thrinaxodon
Cynognathus
Diademodon
Proelesodon
Probainognathus
Exaeretodon
Oligokyphus
Kayentatherium
Pachygenelus
Diarthrognathus
Adelobasileus
Sinoconodon
Kuehneotherium
Eozostrodon
Morganucodon
Haldanodon
Peramus
Endotherium
Kielantherium
Aegialodon
Steropodon
Vincelestes
Pariadens
Kennalestes
Cimolestes
Procerberus
Gypsonictops
Palaechthon
Purgatorius
Cantius
Pelycodus
Amphipithecus
Pondaungia
Parapithecus
Propliopithecus
Aegyptopithecus
Proconsul
Limnopithecus
Dryopithecus
Pakicetus
Nalacetus
Ichthyolestes
Gandakasia
Ambulocetus
Himalayacetus
Attockicetus
Remingtonocetus
Dalanistes
Kutchicetus
Andrewsiphius
Indocetus
Qaisracetus
Takreacetus
Artiocetus
Babiacetus
Protocetus
Pappocetus
Eocetus
Georgiacetus
Natchitochia
Dorudon
Ancalacetus
Zygorhiza
Saghacetus
Chrysocetus
Gaviacetus
Pontogeneus
Basilosaurus
Basiloterus
Sahelanthropus tchadensis
Orrorin tugenensis
Ardipthecus ramidus
Ardipithecus kadabba
Australopithecus afarensis
Australopithecus africanus
Australopithecus anamensis
Australopithecus garhi
Australopithecus aethiopicus
Australopithecus boisei
Australopithecus robustus
Australopithecus bahreghazali
Homo habilis
Homo rudolfensis
Homo erectus.
Yes
yes it is
Although the great white is typically regarded as an apex predator in the wild, it is in rare cases, preyed upon by the larger orca (also known as a killer whale). Interspecific competition between the great white shark and the orca is probable in regions where dietary preferences of both species may overlap.[35] An incident was documented on October 4, 1997 in the Farallon Islands off California-an estimated 4.7-5.3-metre (15-17 ft) female orca immobilized an estimated 3-4-metre (9.8-13 ft) great white shark.[42] The orca held the shark upside down to induce the tonic immobility, and kept the shark still for fifteen minutes, causing it to suffocate and then proceeded to eat the dead shark's liver.[35][42][43] Another similar attack apparently occurred there in 2000, but its outcome is not clear.[44] After both attacks, the local population of about 100 great whites vanished.[43][44] Following the 2000 incident, a great white with a satellite tag was found to have immediately submerged to depth of 500 m and swam to Hawaii.[44]
During prehistoric times, other large toothed whales, such as Squalodon and Dorudon may have also preyed on great white sharks.[citation needed] These whales, in turn, were likely preyed on by the much larger lamnid shark C. megalodon. Basilosaurus, one of the largest predatory whales that ever lived, closely matched C. megalodon in size. This extinct whale almost certainly would have, at least occasionally, hunted and eaten great whites.[citation needed] Upon the extinction of these macropredatory whales, the orca is now the great white's only natural predator.
This question makes no sense, because there are plenty of transitonal fossils.
So I'm just going to list some.
Cladoselache
tristychius
ctenacanthus
paleospinax
spathobatis
Protospinax
Acanthodians
cheirolepis
mimia
Canobius
Aeduella
Parasemionotus
Oreochima
leptolepis
Osteolepis
Eusthenopteron
Sterropterygion
tiktaalik
panderichthys
Elpistostege
Obruchevichthys
Hynerpeton
Acanthostega
Ichthyostega
Pholidogaster
Pteroplax
Dendrerpeton acadianum
Archegosaurus decheni
Eryops megacephalus
Trematops
Amphibamus lyelli
Doleserpeton annectens
vieraella
Proterogyrinus
Limnosclis
Tseajaia
Solenodonsaurus
Hylonomus
Paleothyris
Captorhinus
Petrolacosaurus
Araeoscelis
Apsisaurus
Claudiosaurus
Planocephalosaurus
Protorosaurus
Prolacerta
Proterosuchus
Hyperodapedon
Trilophosaurus
Coelophysis
Deinonychus
Oviraptor
Lisboasaurus
Archeopteryx
Sinornis
Ambiortus
Hesperornis
Ichthyornis
Paleothyris
Protoclersydrops
Clepsydrops
Archaeothyris
Varanops
Haptodus
Dimetrodon
Sphenacodon
Biarmosuchia
Procynosuchus
Dvinia
Thrinaxodon
Cynognathus
Diademodon
Proelesodon
Probainognathus
Exaeretodon
Oligokyphus
Kayentatherium
Pachygenelus
Diarthrognathus
Adelobasileus
Sinoconodon
Kuehneotherium
Eozostrodon
Morganucodon
Haldanodon
Peramus
Endotherium
Kielantherium
Aegialodon
Steropodon
Vincelestes
Pariadens
Kennalestes
Cimolestes
Procerberus
Gypsonictops
Palaechthon
Purgatorius
Cantius
Pelycodus
Amphipithecus
Pondaungia
Parapithecus
Propliopithecus
Aegyptopithecus
Proconsul
Limnopithecus
Dryopithecus
Pakicetus
Nalacetus
Ichthyolestes
Gandakasia
Ambulocetus
Himalayacetus
Attockicetus
Remingtonocetus
Dalanistes
Kutchicetus
Andrewsiphius
Indocetus
Qaisracetus
Takreacetus
Artiocetus
Babiacetus
Protocetus
Pappocetus
Eocetus
Georgiacetus
Natchitochia
Dorudon
Ancalacetus
Zygorhiza
Saghacetus
Chrysocetus
Gaviacetus
Pontogeneus
Basilosaurus
Basiloterus
Sahelanthropus tchadensis
Orrorin tugenensis
Ardipthecus ramidus
Ardipithecus kadabba
Australopithecus afarensis
Australopithecus africanus
Australopithecus anamensis
Australopithecus garhi
Australopithecus aethiopicus
Australopithecus boisei
Australopithecus robustus
Australopithecus bahreghazali
Homo habilis
Homo rudolfensis
Homo erectus
Just to name a few :)
(I might have spelled one or two incorrectly)
