How many baby Dwarf sperm whales are in a litter?
A Dwarf sperm whale (Kogia sima) usually gives birth to around 1 babies.
Each of those little ones spend around 273 days as a fetus before they are released into the wild. Upon birth, they weight 1.5 kg (3.31 lbs) and measure 6 cm (0′ 3″). They are a member of the Physeteridae family (genus: Kogia). An adult Dwarf sperm whale grows up to a size of 2.16 meter (7′ 1″).
To have a reference: Humans obviously usually have a litter size of one ;). Their babies are in the womb of their mother for 280 days (40 weeks) and reach an average size of 1.65m (5′ 5″). They weight in at 62 kg (137 lbs), which is obviously highly individual, and reach an average age of 75 years.
The dwarf sperm whale (Kogia sima) is a sperm whale that inhabits temperate and tropical oceans worldwide, in particular continental shelves and slopes. It was first described by biologist Richard Owen in 1866, based on illustrations by naturalist Sir Walter Elliot. The species was considered to be synonymous with the pygmy sperm whale (Kogia breviceps) from 1878 until 1998. The dwarf sperm whale is a small whale, 2 to 2.7 m (6 ft 7 in to 8 ft 10 in) and 136 to 272 kg (300 to 600 lb), that has a gray coloration, square head, small jaw, and robust body. Its appearance is very similar to the pygmy sperm whale, distinguished mainly by the position of the dorsal fin on the body–nearer the middle in the dwarf sperm whale and nearer the back in the other.The dwarf sperm whale is a suction feeder that mainly eats squid, and does this in small pods of typically 1 to 4 members. It is preyed upon by the killer whale (Orcinus orca) and large sharks such as the great white shark (Carcharodon carcharius). When startled, the whale can eject a cloud of red-brown fluid, similar to a squid. Most of what is known of the whale comes from beached individuals, as sightings in the ocean are rare. Many of these stranded whales died from parasitic infestations or heart failure.The dwarf sperm whale is hunted in small numbers around Asia. It is more threatened by ingesting or getting entangled by marine debris. No global population estimate has been made, and so its conservation status by the International Union for Conservation of Nature (IUCN) is data deficient.
Other animals of the family Physeteridae
Dwarf sperm whale is a member of the Physeteridae, as are these animals:
- Dwarf sperm whale with 1 babies per pregnancy
- Pygmy sperm whale becoming 17 years old
- Sperm whale becoming 77 years old
Animals that share a litter size with Dwarf sperm whale
Those animals also give birth to 1 babies at once:
- Tasmanian pademelon
- Lesser mouse-tailed bat
- Sea otter
- Desert rat-kangaroo
- Maned sloth
- Least horseshoe bat
- African pygmy squirrel
- Angola colobus
- Toolache wallaby
- Roe deer
Animals with the same weight as a Dwarf sperm whale
What other animals weight around 183.07 kg (403.59 lbs)?
- Blue wildebeest usually reaching 197.31 kgs (434.99 lbs)
- Brown bear usually reaching 196.14 kgs (432.41 lbs)
- Sambar deer usually reaching 176 kgs (388.01 lbs)
- Mountain nyala usually reaching 215 kgs (473.99 lbs)
- Hartebeest usually reaching 162.47 kgs (358.18 lbs)
- Waterbuck usually reaching 203.2 kgs (447.98 lbs)
- Mountain tapir usually reaching 155.46 kgs (342.73 lbs)
- Anoa usually reaching 180.86 kgs (398.73 lbs)
- Scimitar oryx usually reaching 198.4 kgs (437.4 lbs)
- Dwarf sperm whale usually reaching 183 kgs (403.45 lbs)
Animals with the same size as a Dwarf sperm whale
Also reaching around 2.16 meter (7′ 1″) in size do these animals:
- Striped dolphin gets as big as 2.3 meter (7′ 7″)
- Mountain zebra gets as big as 2.35 meter (7′ 9″)
- Indo-Pacific bottlenose dolphin gets as big as 2.37 meter (7′ 10″)
- Grey seal gets as big as 2.08 meter (6′ 10″)
- Nilgai gets as big as 2 meter (6′ 7″)
- Brown fur seal gets as big as 1.91 meter (6′ 3″)
- Malayan tapir gets as big as 2.22 meter (7′ 4″)
- Reindeer gets as big as 2.23 meter (7′ 4″)
- Dwarf sperm whale gets as big as 2.16 meter (7′ 2″)
- Northern fur seal gets as big as 1.74 meter (5′ 9″)