HOME >> BIOLOGY >> NEWS
Hopkins scientist evaluates latest findings on the ancestry of whales

From Moby Dick to Shamu, whales have long fascinated humans. Their remarkable status as ocean-dwelling mammals, along with dolphins and porpoises, at once makes them related to us and yet inconceivably different from us. Thus their evolution -- the developmental steps required to leave solid ground for a life in the water -- has long fascinated scientists, including Kenneth Rose of the Program for Functional Anatomy and Evolution at the Johns Hopkins School of Medicine.

In the September 21 issue of the journal Science, Rose provides outside perspective on a report in the same issue that fills an important gap in scientists' understanding of whale evolution. The report by others documents new fossils of very primitive whales that were found in Pakistan.

The new fossils, says Rose, have well-developed limbs and are the first to have well-enough preserved ankle bones to allow scientists to change their conclusions about which animals are the closest relatives of these 50 million-year-old primitive whales. The importance of this finding, and a similar report about even older fossils in the September 20 issue of Nature, is that it unifies the scientific perspective on whale evolution, says Rose.

"What's most important about these new fossils is that they contain well-preserved ankles, the most important region morphologically for establishing evolutionary relationships as early whales were in the process of becoming aquatic," explains Rose. "Previously, only fragments have been known of these species, and the few ankle bones that some had identified were not widely accepted among scientists because of the condition of the fossils and their lack of direct association with whale skulls."

There are two main ways scientists determine evolutionary relationships among various species, he explains. Some scientists consider physical characteristics of specimens -- the morphology -- and look for similarities or differences, the pres
'"/>

Contact: Joanna Downer
jdowner1@jhmi.edu
410-614-5105
Johns Hopkins Medical Institutions
20-Sep-2001


Page: 1 2 3

Related biology news :

1. Hopkins scientists use blood proteins to detect ovarian cancer
2. Hopkins to found first center for comprehensive study of epigenetics
3. Hopkins scientists overcome main obstacle to making tons of short, drug-like proteins
4. Hopkins Marine Station honored by the American Society for Microbiology
5. Johns Hopkins gene hunters pinpoint new cancer gene target
6. Hopkins researchers identify transplantation antigens among Sioux Indians
7. Hopkins researchers discover how nitric oxide prevents blood vessel inflammation
8. Hopkins is first US institution to obtain powerful genotyping system
9. Dr. Robot tested at Hopkins
10. From Hopkins: Children may outgrow peanut allergies
11. OXiGENE announces launch of ophthalmic clinical trial at The Johns Hopkins School of Medicine

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/9/2019)... ... March 08, 2019 , ... Ace Laboratories, Inc. ... resveratrol + ribose hard candy lozenges ( http://www.well-mints.com ). , Well-Mints™ each contain ... hard candy base dusted with powdered sugar. , Well-Mints'™ patented technology delivers resveratrol ...
(Date:3/1/2019)... , ... February 28, 2019 , ... Teresa Krabbe, Ph.D., ... Isar of the Technical University Munich, has been awarded an xCELLigence Research Grant for ... improved oncolytic virus platform. , Oncolytic viruses represent an exciting new aspect ...
(Date:2/22/2019)... ... February 20, 2019 , ... RoosterBio, Inc, a privately held ... footprint in Frederick, MD after a year of rapid growth. , “Hundreds of ... cell (hMSCs) products to streamline their product development efforts in the regenerative medicine ...
Breaking Biology News(10 mins):
(Date:3/19/2019)... Calif. (PRWEB) , ... March 19, 2019 , ... Bogey was nine years old when ... arthritis in his left hip. These ailments caused Bogey to experience problems with his ... vehicles, up stairs, and onto his special spot on the couch. , His owners, devastated ...
(Date:3/19/2019)... ... March 19, 2019 , ... ... hospital in Israel and the Middle East region, and Swiss-based CDMO Lonza ... manufacturing platform. The partnership will enable Sheba to vastly streamline its in-house ...
(Date:3/15/2019)... ... March 15, 2019 , ... ... Inc. and affiliate companies including AVAPCO LLC and API Intellectual Properties Holdings. ... Biorefinery and R&D center in Thomaston, Georgia, operations, research, and business development ...
(Date:3/14/2019)... , ... March 14, 2019 , ... ... Conference & Expo, themed “Navigating the Full Spectrum of Case Management,” continues as ... 10-14, 2019. This conference is the only case management industry conference serving the ...
Breaking Biology Technology:
Cached News: