Sifting through teaspoons of clay and sand scraped from the floors of caves, German researchers have managed to isolate ancient human DNA — without turning up a single bone. Their new technique, described in a study published on Thursday in the journal Sifting through teaspoons of clay and sand scraped from the floors of caves, German researchers have managed to isolate ancient human DNA — without turning up a single bone.
It’s a bit like discovering that you can extract gold dust from the air,” said Adam Siepel, a population geneticist at Cold Spring Harbor Laboratory.
An absolutely amazing and exciting paper,” added David Reich, a genetics professor. Harvard who focuses on ancient DNA. Until recently, the only way to study the genes of ancient humans like the Neanderthals and their cousins, the Denisovans, was to recover DNA from fossil bones.
But they are scarce and hard to find, which has greatly limited research into where early humans lived and how widely they ranged. The only Denisovan bones and teeth that scientists have, for example, come from a single cave in Siberia.
Ingredients
Main Ingredients
1 1/2 lbs Salmon Fillets
1/2 cups Soy Sauce
2 tbsp Brown Sugar
1/2 cups Water
6 tbsp Vegetable Oil
Mixing Ingredients
1/2 tsp Salt (To your taste)
1/2 tsp Lemon Pepper
1/2 tsp Garlic Powder
Instructions
0/4 Instructions
Step 1
Season salmon fillets with lemon pepper, garlic powder, and salt.
Step 2
In a small bowl, stir together soy sauce, brown sugar, water, and vegetable oil until sugar is dissolved. Place fish in a large resealable plastic bag with the soy sauce mixture, seal, and turn to coat. Refrigerate for at least 2 hours.
Step 3
Preheat grill for medium heat.
Step 4
Lightly oil grill grate. Place salmon on the preheated grill, and discard marinade. Cook salmon for 6 to 8 minutes per side, or until the fish flakes easily with a fork.
Notes
The earliest known written recipes date from approximately 1600 BC and come from an Akkadian tablet from southern Babylonia. There are also works in ancient Egyptian hieroglyphs depicting the preparation of food.
H1: Traveling is cheaper than staying at home
This is my average total monthly spending from one year living in Seattle’s Capitol Hill, one year living in San Francisco’s Upper Haight, one year traveling to 20 countries, and one month at a hotel in Bali. It is much cheaper for me to travel. Since the majority of my costs are from trains and flights, it’s significantly cheaper if I stay in one place.
H2: Traveling makes me more productive
This is my average total monthly spending from one year living in Seattle’s Capitol Hill, o
ne year living in San Francisco’s Upper Haight, one year traveling to 20 countries, and one month at a hotel in Bali. It is much cheaper for me to travel. Since the majority of my costs are from trains and flights, it’s significantly cheaper if I stay in one place.
H3: 9–5 is not optimal
This is my average total monthly spending from one year living in Seattle’s Capitol Hill, one year living in San Francisco’s Upper Haight, one year traveling to 20 countries, and one month at a hotel in Bali. It is much cheaper for me to travel. Since the majority of my costs are from trains and flights, it’s significantly cheaper if I stay in one place.
H4: Traveling expands my cultural bubble
This is my average total monthly spending from one year living in Seattle’s Capitol Hill, one year living in San Francisco’s Upper Haight, one year traveling to 20 countries, and one month at a hotel in Bali. It is much cheaper for me to travel. Since the majority of my costs are from trains and flights, it’s significantly cheaper if I stay in one place.
H5: Traveling is not the same as vacation
This is my average total monthly spending from one year living in Seattle’s Capitol Hill, one year living in San Francisco’s Upper Haight, one year traveling to 20 countries, and one month at a hotel in Bali. It is much cheaper for me to travel. Since the majority of my costs are from trains and flights, it’s significantly cheaper if I stay in one place.
H6: I became a nomad by accident
This is my average total monthly spending from one year living in Seattle’s Capitol Hill, one year living in San Francisco’s Upper Haight, one year trave
ling to 20 countries, and one month at a hotel in Bali. It is much cheaper for me to travel. Since the majority of my costs are from trains and flights, it’s significantly cheaper if I stay in one place.
