|
gptkbp:instance_of
|
gptkb:marine_mammals
|
|
gptkbp:behavior
|
herbivorous
|
|
gptkbp:body_shape
|
robust
robust and rounded
|
|
gptkbp:color
|
dark gray
grayish-brown
|
|
gptkbp:conservation_efforts
|
none after extinction
increased after extinction
|
|
gptkbp:conservation_status
|
extinct
extinct in the wild
no longer exists
|
|
gptkbp:cultural_significance
|
gptkb:Native_American_culture
historical interest
|
|
gptkbp:diameter
|
up to 10 cm
|
|
gptkbp:diet
|
kelp
|
|
gptkbp:discovered_by
|
gptkb:Georg_Wilhelm_Steller
|
|
gptkbp:discovery_year
|
1741
|
|
gptkbp:extinction_cause
|
overhunting
|
|
gptkbp:family
|
gptkb:Dugongidae
|
|
gptkbp:first_described_by
|
1751
|
|
gptkbp:first_encountered_by
|
Russian explorers
|
|
gptkbp:first_extinction_reported
|
1768
|
|
gptkbp:first_sighted_by
|
European explorers
|
|
gptkbp:foraging_behavior
|
benthic grazing
browsing on kelp
|
|
gptkbp:fossil_record
|
limited
|
|
gptkbp:gestation_period
|
approximately 13 months
|
|
gptkbp:habitat
|
kelp forests
cold coastal waters
|
|
gptkbp:habitat_preference
|
shallow waters
shallow coastal areas
|
|
gptkbp:habitat_range
|
gptkb:North_Pacific_Ocean
|
|
gptkbp:has_skin
|
thick and tough
|
|
gptkbp:historical_significance
|
first marine mammal described by Europeans in the North Pacific.
first marine mammal extinction recorded by science
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Steller's sea cow
|
|
gptkbp:is_observed_in
|
1768
|
|
gptkbp:known_for
|
large size
|
|
gptkbp:length
|
up to 30 feet
up to 9 meters
|
|
gptkbp:lifespan
|
up to 70 years
|
|
gptkbp:lives_in
|
gptkb:North_Pacific_Ocean
|
|
gptkbp:location
|
gptkb:Bering_Sea
|
|
gptkbp:migration
|
non-migratory
|
|
gptkbp:mouth
|
no teeth, instead have keratin plates
|
|
gptkbp:native_to
|
gptkb:Bering_Sea
|
|
gptkbp:notable_feature
|
large flippers
|
|
gptkbp:order
|
gptkb:Sirenia
|
|
gptkbp:plot_twist
|
paddle-like
|
|
gptkbp:predators
|
gptkb:humans
|
|
gptkbp:range
|
Bering Sea to the Aleutian Islands
|
|
gptkbp:related_species
|
gptkb:Dugong_dugon
gptkb:Sirenia
|
|
gptkbp:related_to
|
manatees
dugongs
|
|
gptkbp:reproduction
|
viviparous
|
|
gptkbp:research
|
ongoing
limited due to extinction
|
|
gptkbp:research_interest
|
paleontology and marine biology
|
|
gptkbp:scientific_classification
|
gptkb:Kingdom_Animalia
gptkb:Phylum_Chordata
Class Mammalia
Order Sirenia
Family Dugongidae
Genus Hydrodamalis
Animalia, Chordata, Mammalia, Sirenia, Dugongidae
|
|
gptkbp:scientific_name
|
gptkb:Hydrodamalis_gigas
|
|
gptkbp:skin_color
|
grayish-brown
dark brown to gray
|
|
gptkbp:social_behavior
|
generally solitary
herbivorous feeding
|
|
gptkbp:social_structure
|
solitary or small groups
|
|
gptkbp:speed
|
up to 8 km/h
|
|
gptkbp:threats
|
human exploitation
|
|
gptkbp:weight
|
up to 1,000 kg
up to 1,500 kg
up to 2,200 pounds
|
|
gptkbp:wildlife
|
gptkb:18th_century
yes
not a significant factor
|
|
gptkbp:year_extinct
|
1768
|
|
gptkbp:young
|
calf
|
|
gptkbp:bfsParent
|
gptkb:marine_mammals
gptkb:animals
|
|
gptkbp:bfsLayer
|
4
|