Fur.
Feed milk to offspring.
Maybe on a planet we have not yet discovered there are alien races with mammalian characteristics (i.e. feline, canine, primate, equine, cetacean, rodent, etc.).
The major mammalian characteristics exhibited by the fetal pig include having hair or fur on its body, being warm-blooded, giving birth to live young (viviparous), and nursing young with milk produced by mammary glands.
Mammalian integuments possess four unique characteristics: Hair: Mammals are covered in hair or fur, which provides insulation and protection. Glands: They have specialized skin glands, such as sweat glands for thermoregulation and sebaceous glands for lubrication. Complexity: Mammalian skin is multi-layered, consisting of an epidermis, dermis, and hypodermis, allowing for diverse functions. Varied Structures: Integuments can exhibit a wide range of structures and adaptations, including scales, feathers, and specialized sensory receptors, depending on the species and environment.
A whale's brain is unique because it is exceptionally large and has specialized areas for communication and echolocation, which are not found in other mammalian brains. This allows whales to navigate and communicate effectively in their underwater environment.
Mammalian Species was created in 1969.
If mermaids existed (which they don't) they would presumably be mammals. At least, most depictions of mermaids show them with obvious mammalian characteristics (specifically, obvious human characteristics; most mammals do not have large, permanent breasts).
No. Mammalian red blood cells do not have nuclei.
Mammalian promoter database was created in 2010.
no
International Mammalian Genome Society was created in 1991.
Mammalian cells have nuclei. But red blood cells lack
The cast of Mammalian - 2010 includes: Taku Hokoyama as himself