The Moth Experiment
The research took place over a sixty year period!
The purpose of the experiment was to observe the genotype frequency of the scarlet
moth and relate the patterns of allele frequency change as a result of genetic drift.
Bottlenose Dolphin Characteristics
Rostrum and eating habits
The mouth of the bottlenose dolphin is called the rostrum and contains anywhere
from 72-104 teeth.
o All of their teeth are the same size and they only contain one set of teeth.
Dolphins do not
Respiration of The Bottlenose Dolphin
As the dolphin is coming up for air, it exhales just before it reaches the surface of the water.
Seawater, along with respiratory gases is shot up in the air and this is why it appears there is
water coming out of the
Natural and Sexual Selection
What about natural and sexual selection? Natural selection is the struggle
for existence, where sexual selection is the right to a mate. Both play an influential
role in genes getting passed on. In sexual selection, many times
Cognitive Abilities of Dolphins with One Another
Learn by watching
Dolphin calves learn by watching their mother. Vocal learning is picked up first,
in case of separation between mother and calf. The mother teaches the calf how to
hunt and defend itself (
Genetic Drift and Geographic Factors
Geographic was one factor argued.
Instead of genetic drift, geographic isolation was a common way for speciation
o It was argued that the isolation does not necessarily even need to be a
physical barrier, but
Whistles and Echolocation
Signature whistles are established between mother and calf. A study done off the coast of
Sarasota Florida analyzed whistle exchanges of a sample size of 100 dolphins.
The study revealed that the Males actually tend to have a sim
1.) Present general background on toothed whales, focusing on Atlantic Bottlenose Dolphins.
Present why the specific topic of choice is important. Also, why I chose it.
a.) I want to integrate my experience from training dolphins in Honolul
Social Groups of Marine Life
They use their teeth and drag them across the backs of other dolphins. These are
referred to as rake marks, and are superficial lacerations that heal quickly, due to
the fact the skin of the dolphin sheds
How Dolphins Hear
Atlantic bottlenose dolphins have an incredible acute sense of hearing.
The size of the ear on the outside is the size of a pinprick right behind the eye and the ear
cavity on the inside is about the size of an orange.
Most sound recept