baleen whale

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References in periodicals archive ?
Antarctic minke whales are among the few species of baleen whales not decimated by commercial whaling during the 20th century, and some scientists have hypothesized that their large numbers are hampering the recovery of deleted species, such as blue, fin and humpback, which may compete for krill.
Low abundance could explain the failure to detect and document recovery of severely depleted populations of baleen whales.
Review of the biology, exploitation and present abundance of large baleen whales and sperm whales in Norwegian and adjacent waters.
The research conducted by Dr Fitzgerald supports Charles Darwin's speculation in 'The Origin of Species', that some of the earliest baleen whales may have been suction feeders, and that their mud grubbing served as a precursor to the filter feeding of today's giants of the deep.
ISLAMABAD -- Using computer simulation of a fin whale head, scientists have discovered that the skulls of at least some baleen whales have acoustic properties that capture the energy of low frequencies and direct it to their ear bones.
The same process applied to the slower mysticetes; the primary product from sperm whales was oil, and for baleen whales, oil, and baleen.
He also said that scientists from the Woods Hole Oceanographic Institution used a pinger with the same specification as MH370 in their study of baleen whales.
Baleen whales We encountered 6 or possibly 7 species of baleen whales (one encounter was undetermined; it was not possible to distinguish whether it was a Bryde's or sei whale [Balaenoptera edeni brydei, B.
It lived at a time of global warmth, in shallow seas around Zealandia , the continental fragment that New Zealand rests upon, along with ancient penguins and baleen whales.
This study showed that these genes may be pseudogenes with early stop codons in the baleen whales.
And the object of the quest is no ferocious leviathan: It is probably one of the generally meek baleen whales that prey on creatures close to the base of the food chain.
But until now, the hearing systems of their toothless cousins, baleen whales, remained a mystery.
Finally, about 35,000,000 years ago, we see the arrival of the earliest forms of the modern groups of whales, the baleen whales and the echolocating toothed whales.
The team will also use genetic techniques to study age-related gene expression, which could lead to a simple, non-lethal ageing method for baleen whales.