Elephants have one of the longest gestation period among mammals. They are pregnant for a period of around 22 months. After the 22 month gestation, they giver birth to a calf that is approximately 250 pounds heavy and stands at around 2.5 feet tall
Orangutans have the longest infant development period - a minimum of 10 years.
An opening sentence for what! Any opening sentence depends entirely on what the rest of the writing is about. It is no good having a sentence like this. The elephant's gestation period is 22 months, the longest of any land animal. if you are writing about global warming.
In general, larger mammals have longer gestation periods. The African Bush Elephant has the longest gestation period at 22 months. Placental mammals have longer gestation periods than marsupials. Some small marsupials have gestation periods of less than two weeks.
When a female is in heat, her scent attract males (bulls) who court and mate with the female. After the mating, the males move off and the females take care of raising the youngster. Only the strong & large adult bull elephants get to mate with females. They mate once every 3 to 4 years. She will come to heat once her current calf is old and large enough to fend for herself
caribou
Extant: Aquatically and in general, the Sperm Whale (Physeter Macrocephalus) (Cachalot) would be the aquatic animal and modern-day animal in general with the longest skullTerrestrially, members of the species Loxodonta Africana (African Bush elephants) are the longest-skulled land animal.Extinct: The land animal with the longest skull ever in existence would be Titanoceratops Ouranos
Extant: Aquatically and in general, the Sperm Whale (Physeter Macrocephalus) (Cachalot) would be the aquatic animal and modern-day animal in general with the longest skullTerrestrially, members of the species Loxodonta Africana (African Bush elephants) are the longest-skulled land animal.Extinct: The land animal with the longest skull ever in existence would be Titanoceratops Ouranos
The longest animal in the world would be the bootlace worm (Lineus longissimus). A specimen was recorded at 180 feet long. The longest vertebrate in the world is the Blue Whale (longest recorded at 108ft).
Maybe one of those big long snakes?
turtules, most live in the ocean
Giraffe
The pig is the animal that takes the longest to mate. A pig orgasm has been recorded to last for more than thirty minutes.