Somewhere between the size of a blue whale and a bottlenose dolphin sits orcas, so you might wonder how longkiller whaleslive. Sadly,killer whales struggle to live for long periods in captivity, where their lifespan is often 30 years or less. In the wild, killer whales can reach beyond 40...
Well, with a maximum length of 60 feet, the largest sperm well barely even comes close to the smallest blue whale. If you were to place them side by side, the sperm whale would be about half the size of the blue whale. This means that nose to nose, the sperm whale’s tail is alm...
Species Identification Using Genetic Tools: The Value of Nuclear and Mitochondrial Gene Sequences... Examines the value of nuclear and mitochondrial gene sequences in whale conservation. Information on the genetic monitoring of whaling; Trends in species f... Palumbi,R S.,Ciprano,... - 《Journa...
Brownell and Ralls (1986) reviewed the literature on baleen whale testes size, penis length, and mating system. They reasoned that in species with sperm competition, large testes that produce large amounts of sperm per ejaculation would serve to dilute and displace the sperm of rival males ...
Despite their gargantuan size, the blue whale's primary diet is krill. While krill typically grow to a size of a few inches, the blue whale can make a meal of them by attacking patches of them. Due to how much energy is expended when eating large patches of krill, blue whales have ...
A comparison of the size of baleen whales,the bowhead and grey whales are not species found in AntarcticaPicture courtesy - The Lord of the AllosaursWhale adaptationsPicture credits: Most pictures courtesy of NOAA except - Fin whale off the coast of Greenland, Aqqa Rosing-Asvid - Visit ...
A female of size 150 mm produces approximately 1.5 million eggs. In the cultivation experiment, about 85% of the total egg production was shed during the first 3 days after spawning started. 展开 关键词: Vertebrata Mammalia Cetacea Invertebrata Helmintha Nemathelminthia Nematoda Reproduction ...
but now it appears that there are several species (or at least, subspecies—researchers are still figuring this out) of orcas. As researchers learn more about orcas, they have proposed separating the whales into different species or subspecies based on genetics, diet, size, vocalizations, locatio...
Whale, any of the larger species of aquatic mammals belonging to the order Cetacea. Whales are the heaviest known animals, living or fossil, reaching a maximum size in the blue whale of perhaps more than 30 meters and 200 metric tons. They are distribute
The inner ear of this species is the largest known in the animal kingdom and the diameter of the semicircular canals are near the theoretical maximum dimensions for such structures (Muller, 1999). The large size of the whale shark's inner ear mechanism may simply be an artefact of this ...