These similar adaptations include the following: their bodies have become streamlined their front and hind limbs evolved into flipper-like appendages used for gliding through the water all possess a thick layer of blubber to insulate them from the cold, aid in buoyancy and serve as an energy reserve many of their external structures such as reproductive and sensory organs have become internalized in order to reduce drag while swimming Marine Mammal Terrestrial Common Group Ancestors Traits Seals, Sea lions- Bear, dog (Pinnipeds) Streamlined bodies Dugong, Manatee- Elephant Flipper-like appendages (Sirenia) Thick layer of blubber Internalization of structures Whales, Dolphins- Camel, Cow (Cetaceans) Sea Otter- Weasel (Carnivora) The development of similar traits among marine mammals is an example of convergent evolution .
(their bodies; have become; streamlined; T:their front and hind limbs evolved into flipper-like appendages) (their front and hind limbs; evolved; into flipper-like appendages) (flipper-like appendages; used; for gliding through the water) (Sea Otter- Weasel; is; an example of convergent evolution) Context(Sea Otter - Weasel is,List([708, 795))):(These similar adaptations; include; the following: their bodies have become streamlined) (Bear; [is]; dog)
Sea Otter - Weasel is,List([708, 795))
their bodies their front and hind limbs flipper-like appendages Sea Otter- Weasel These similar adaptations Bear
have become evolved used is include [is]
streamlined T:their front and hind limbs evolved into flipper-like appendages
into flipper-like appendages
for gliding through the water
an example of convergent evolution
the following: their bodies have become streamlined
dog