These charming pinnipeds are agile, sleek and energetic with an eagerness of spirit that's irresistibly compelling. Like the dolphin, sea lions are pleasure connoisseurs who can be quite lazy when it comes to putting in a solid day's work. With the dog's loyalty and generosity, it manages to charm everyone with its effervescence.
Here we show that both male and female reproductive behavior during the breeding season June—August affect female fecundity, a vital rate that is an important determinant of population growth rate and viability. By using 4 years of data on behavior and demography of California sea lions Zalophus californianuswe found that male behavior and spatial dynamics—aggression and territory size—are significantly related to female fecundity. Higher rates of male aggression and larger territory sizes were associated with lower estimates of female fecundity within the same year.
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Please take this quick survey to tell us about what happens after you publish a paper. Behavioral Ecology and Sociobiology. Proximal mechanisms underlying a faster growth rate in male compared to female California sea lion pups were investigated. Males are significantly larger at birth than females.
The difference between a sea lion and a seal is that the former had has flaps over its ears and large front flippers that allow it to maneuver around on land more easily. Seals and sea lions have many similarities with land carnivores like dogs and cats such as a long snout and sharp teeth and are thought to have developed from land mammals about 20 million to 25 million years ago. There are 34 species of seal, all of which mate and give birth on land and feed at sea.
If you thought this week's baby zoo animal news was over, think again: A California sea lion pup is the newest arrival at the National Zoo, the Smithsonian Conservation Biology Institute announced Friday. The tiny sea lion was born on June 23 at 11 p. The zoo said that staff are monitoring the pup and have observed it nursing, moving and vocalizing.
Top definition. Sealion unknown. From Wikionary: "To intrude on a conversation with disingenuous questions in an attempt to engage in unwanted debate as a form of harassment.